Offensive Omastar

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Offensive Omastar aims primarily to counter tauros, and snorlax. It's typing allows it to handle normal STAB moves with ease, resist ice moves, and decently handle Earthquake thanks to its physical bulk. Both tauros and snorlax 3HKO Omastar, but Tauros has an advantage thanks to outspeeding and its higher crit chance.

The standard set uses both Hydro Pump and Surf in order to maximize the chances of winning the matchup. Other moves include submission to avoid being walled by chansey (and having a decent chance of beating it with paralysis support.) And Blizzard to cover Grass types like Exeggutor, Victreebel and Venusaur.In addition Blizzard serves as a last resort for a freeze chance in losing situations

- Hydro Pump
- Surf
- Submission
- Body Slam/Blizzard
 
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Will be working on montecarlo/exhaustive tree search algorithms to determine the probabilities of winning or losing a 1v1 vs Tauros.

Below is a rough pre-simulation analysis:

Assuming no misses and no crits, Omastar beats Tauros, as HPump is a 2HKO, and EQ is a 3HKO. Crits and misses of course give Tauros a chance at winning. Surf helps marginally by allowing Omastar to do a Hydro Pump surf combo on high HPump rolls.

Omastar beats Snorlax with similar assumptions even if Snorlax Carries EQ (Of course snorlax with SD, Hyper Beam or an ice move fare much worse). Omastar wants to alternate Pump and Surf for the first two hits, (Ideally Surf first) and then chose between Pump or surf based on what the rolls were. The crit chance of snorlax is much lower, but Omastar needs to do one additional attack, so it kind of balances out.

Finally Chansey is strictly within 3HKO range of Submission. Unparalyzed full health chansey is probably very safe, as is thunderbolt as paralyzing Omastar basically eliminates the reduces the kill condition to a double crit. However if opposing chansey is paralyzed, Omastar fares a little bit worse than Double Kick jolteon does, netting the reasonable win condition of scoring a crit or full paralysis on a 2/3 health chansey.

Other matchups like Exeggutor will be reasonable with the set proposed, but Alakazam and Starmie are unforgiving. Body Slam could improve the scenario, especially vs Alakazam, but to my consideration, not enough to warrant a move slot. A reasonable move to explore would be hyper beam in place of submission, as it maintains some usefulness vs chansey, while providing an out vs Alakazam.

Stay tuned for exact results, and later for analysis vs other matchups.
 
Calculation with Hpump+Surf combo gives 63.45% . Which is not insignificant.

It's a bit less than that as Hpump+ Surf average adds to 99.6, not 100%.

But if we factor in crit chances when deciding between surf and Hpump, it probably ends up being a bit higher. If we just ballpark and multiply the strategy difference by crit chance, we get 64% total.

Might cancel out and end up near 63.5%
 
If someone is more used to doing actual writing, feel free to start writing the skeleton. I can do writing, but I'm better left to doing the actual mathematical analysis.

Furthermore. While analysis focus on the big 3, which is the raison d'etre of the set, we still need to evaluate the rest of the mons, particularly starmie and exeggutor, and Zam.

The electrics are a lost cause, but at least you can get 1 attack in, being a 2HKO.

Eggy psychic is on average a 3HKO without accounting for spdef drops.
Omastar is a guaranteed 3HKO, but then again, spdef drop risks.
Of course mega drain wrecks Omastar. No need to elaborate.

Starmie absolutely walls, omastar, even if we were to mix in some body slam here and there, it doesn't do much.

Alakazam looks pretty bad as well, damage can be healed off, and twave reduces any chances of breaking through.

Thus, Omastar should only be shown either as a switch in vs Snorlax and Tauros, or as a revenge switch in.

Switch outs should not be as common, as the matchup is close to a trade, but if counters are present.

Omastar can pressure switchins with Hydro Pump damage, Blizzard freeze chances, Body slam para chances (particularly since it would be forcing out the normals), and double switches, but this is not a powerful tool, rather a coping mechanism.

For this reason, Omastar should be preferred as an endgame tool, replacing Omastar for common pokemon force misplays and strengthen your own chansey against repeat opponents, by creating uncertainty in unrevealed pokemon.

Replacing by chansey forces the most favourable Tauros matchups, as it tends to favour keeping Tauros. This also incentivizes the opponent sacking Starmie.
Replacing Tauros is not recommended as it can encourage the opponent saving Chansey or Alakazam.
Snorlax is a popular big 3 pokemon to be dropped in late metagame developments, although faking a snorlax doesn't particularly synergize with Omastar, with the exception of baiting tailwhip rhydon.

Snorlax in particular tends to be showed earlier, so one should rely on common Snorlax responses, Tauros being a pokemon often reserved for the endgame, is the meat of Omastar, claiming 64% of a high value pokemon, upon stayins, and punishing switchouts with a wide array of chip advantages.

In addition to beating Tauros, Omastar will thus shine when it is permitted to loop into Tauros, either by eating a body slam, or by double switchins. While paralysis does drop the winrate of Omastar, it only does so by full paralysis chance, rather than due to speed drops. Chansey synergizes well by walling common Starmie and Zam responses.

Lead Gengar is not particularly a threat, as it appears at different moments in the game. With the exception of Wall gengar. Showing snorlax and not revealing moves should bait out Gengar pretty easily.

Rhydon of course wants nothing to do with Omastar.

Cloyster and Omastar wall each other pretty hard, although cloyster has the upper hand with surf and clamp.


In summary. While Omastar has a great matchup against the 3 most powerful pokemon in the metagame, it has a terrible matchup against almost every other pokemon. So if you ever face one, just switch out!

Lesson learned.
 
Replacing last move Blizzard with Body Slam.

While Blizzard does provide coverage vs Exeggutor, the rarer Victreebel, and even rarer Venusaur. It doesn't do much else, other than a last ditch effor to freeze.

Body slam at least provides a switch in punishment vs exeggutor, while also allowing that tool for every other counter and check in the game, like Starmie, Alakazam, Cloyster, Slowbro.

Versus chansey even, it is not insignificant, as it can sometimes serve as a tool to get chansey in submission crit/full para range without revealing submission.

Considering that switch outs are the main counterplay to Omastar, and that those switch outs are never normal types. Body Slam will serve as a strong tool against opponents that know how to play against you.

In this case Omastar would play similarly to Rhydon vs Exeggutor and starmie. Sometimes clicking Body Slam instead of the actually threatening move in a randomized pattern, providing a small paralysis chance, but doing so in a manner that is stronger than thunder wave, as it is not easily blockable with pokemon that are already statused. Following this logic, it is preferable to apply your first paralysis on normal types, including chansey,this is especially useful for teams that rely on paralysis, like setup snorlax, wrapper teams, and late sweeping.
 
Further consideration:

It is not only sufficient to look at the winrate of a matchup, but also to consider how healthy the winning pokemon is. If Tauros wins with an average of 80% health 40% of the time, and Omastar wins a with 20% health 60% of the time. Then Tauros is worth much more even if he only wins the matchup 40% of the time.
 
Compliant Skeleton (CGPT generated)

[OVERVIEW]
Omastar serves a unique role in the Gen 1 OU metagame as a counter to powerful Normal-types like Tauros and Snorlax. Its Rock/Water typing and high physical bulk allow it to resist Normal-type STAB moves and handle Ice-type attacks effectively. Despite being outsped by Tauros, Omastar can generally withstand hits and retaliate with strong Water-type moves. Its coverage options and utility make it a niche but valuable addition to certain teams.

[SET]
name: Offensive move 1: Hydro Pump move 2: Surf move 3: Submission move 4: Body Slam / Blizzard

[SET COMMENTS]
Set Description
This set is designed to maximize Omastar's ability to check Tauros and Snorlax, two of the most threatening Normal-types in the metagame. Hydro Pump and Surf are chosen to provide reliable STAB options, with Hydro Pump dealing significant damage and Surf offering consistent accuracy. The combination of these moves increases the likelihood of winning key matchups.

Submission is included to prevent Chansey from walling Omastar completely, giving Omastar a decent chance to beat it with paralysis support. Body Slam is preferred over Blizzard for its utility in spreading paralysis, which can cripple faster threats like Alakazam and Starmie. Blizzard, however, can be used to deal with Grass-types like Exeggutor and provides a chance to freeze opponents in dire situations.

[STRATEGY COMMENTS]
Other Options
  • Hyper Beam can be considered over Submission for its raw power and ability to finish off weakened foes.
  • Rest is an option for longevity, but it compromises Omastar's offensive presence.
  • Toxic can be used to wear down bulky opponents, though it is generally less effective in the fast-paced Gen 1 metagame.
Checks and Counters
Electric-types: Pokémon like Jolteon and Zapdos can outspeed and 2HKO Omastar with their Electric-type moves, although Omastar can potentially cripple them with Body Slam.

Grass-types: Exeggutor, Victreebel, and Venusaur resist Omastar's Water-type moves and can hit back hard with Mega Drain or other Grass-type moves. Blizzard can threaten them but is not always reliable.

Special Attackers: Alakazam and Starmie can outspeed and wear down Omastar with their special moves. While Body Slam can paralyze them, Omastar generally struggles against these Pokémon.

Status: Paralysis from moves like Thunder Wave significantly hinders Omastar's effectiveness, making it more vulnerable to faster threats and reducing its chances of winning key matchups.

[CREDITS]

Prompt used:
https://chatgpt.com/share/b1eba5b9-8c4d-4b31-8574-462753a39104
 
Revision 1

[OVERVIEW]
Omastar is rarely seen in Gen 1 OU, especially at higher levels of play, while it can be beaten technically, it is not possible to do so consistently, and requires technical knowledge of the matchup in order to do so. The viability of Omastar in OU is low, as will be shown, so the main purpose of this analysis is to learn how to counterplay against an Omastar, and to learn how to play Omastar in order to throw off opponent's into uncharted territory.
The main matchups that Omastars fairs well against are normal types, and thus its defining role is to counter them. This is a natural property of Omastar thanks to its Rock typing, but also thanks to its water typing which blocks common coverage Ice moves, which are common in most normal types due to the common association of Ground with high defense and Rock typing.
Its Rock/Water typing and high physical bulk allow it to resist Normal-type STAB moves and handle Ice-type attacks effectively. Despite being outsped by Tauros, Omastar can generally withstand hits and retaliate with strong Water-type moves. Its coverage options and utility make it a niche but valuable addition to certain teams.
Omastar is made especially relevant in the metagame post-normal paralysis resistance, which significantly buffed Chansey Tauros and Snorlax, raising them even closer to 100% usage in higher tiers.
However we will reveal Omastar weaknesses and how to counter it. Once you know its tricks, unless you have below average luck, it's possible to outplay with very simple strategy.


[SET]
name: Offensive Anti-Meta Normal Counter
move 1: Hydro Pump
move 2: Surf move
3: Submission move
4: Body Slam / Blizzard

[SET COMMENTS]
Set Description
This set is designed to maximize Omastar's ability to check Tauros and Snorlax, two of the most threatening Normal-types in the metagame. Hydro Pump and Surf are chosen to provide reliable STAB options, with Hydro Pump dealing significant damage and Surf offering consistent accuracy. The combination of these moves increases the likelihood of winning key matchups.

Submission is included to prevent Chansey from walling Omastar completely, giving Omastar a decent chance to beat it with paralysis support. Body Slam is preferred over Blizzard for its utility in spreading paralysis, which can cripple faster threats like Alakazam and Starmie. Blizzard, however, can be used to deal with Grass-types like Exeggutor and provides a chance to freeze opponents in dire situations.

Body Slam is used to give Omastar a tool against recovery pokemon like Starmie and Alakazam. Omastar has the choice between suiciding and fishing for paralysis, or predicting a switch and going for a body slam. Allowing Omastar to switch out and repeat the loop.

In the latter case, Omastar should randomly mix in Body Slams and attacks, as a Body Slam against a Normal type is particularly weak. Blizzard provides a reasonable intermediate answer, dealing a bit more damage, fishing for status against stay-in normals, or against non-normal counters. But body slam is preferred, since it's 30% status chance, even after it is divided by 2 (assuming we guess correctly half of the time. ) is higher. Finally Omastar should err towards water type moves, only clicking body slam around 30% of the time, this is due to the fact that the opponent has a higher reward for staying and attacking than switching out.

[STRATEGY COMMENTS]
Other Options
  • Hyper Beam can be considered over Submission for its raw power and ability to finish off weakened foes.
  • Rest is an option for longevity, but it compromises Omastar's offensive presence.
  • Toxic can be used to wear down bulky opponents, though it is generally less effective in the fast-paced Gen 1 metagame.
[Checks and Counters]
Starmie: These recover-abusing staples can outspeed and wear down Omastar with their special moves. While Body Slam can paralyze them, it's all it can do.

Alakazam: In practice Alakazam is as strong a counter as starmie, with the exception that Omastar can technically beat Alakazam if it gets a Body Slam paralysis, or if Alakazam was already paralyzed.

Electric-types: Pokémon like Jolteon and Zapdos can outspeed and 2HKO Omastar with their Electric-type moves, although Omastar can potentially cripple them with Body Slam. Or take a bit less than half of their health with Hydro Pump before dying.

Grass-types: Exeggutor, Victreebel, and Venusaur resist Omastar's Water-type moves and can hit back hard with Mega Drain or other Grass-type moves. Omastar can theoretically beat Exeggutor with Blizzard, but 30% psychic Spdef drops tilt the matchup in favour of Exeggutor, forcing Omastar to switch out.

Unparalyzed Chansey: Even with Submission, Chansey can just paralyze Omastar and heal off damage. You can fight back only by threatening to switch out to your own chansey in response to Thunder Wave.

[Conclusion]

Players facing Omastar should employ a mix of staying in against Omastar and switching out to one of its counter in an unpredictable fashion.
Omastar is consistently inferior to every normal pokemon in the game. While an Omastar player will be able to trade their Omastar for a Tauros in good cases, they will often be trading their omastar for a couple of 30% paralysis chances or a couple of 40% health chip damages, especially versus good players.

Omastar should be used in a measured fashion as a creative tool, whether by replacing Omastar and late revealing to increase unpredictability, as a tool to measure an opponent's game-knowledge, or simply for style points. As chess players from the Romantic era argued, a beautiful, creative or handicapped win, is worth more than a win achieved with standard strategies. If you subscribe to this notion, Omastar is for you, if not, now you know how to beat it.

[CREDITS]

Prompt used:
https://chatgpt.com/share/b1eba5b9-8c4d-4b31-8574-462753a39104
 
Yeah, sorry, the writing is barely coherent, and most of the it seems to focus on concepts such as "Rock resists Normal" and "you should do predictions", which is not really offering any insight into Omastar's common play patterns, nor to his best niche - which is first and foremost to wall EQ-less Snorlax, a task that Omastar fails if it's not carrying Rest. This analysis is visibly written by someone without much experience in top level RBY, and too much of the text is stating things that are either trivial or missing the point.

It doesn't help that the formatting is all over the place (ChatGPT cannot save you, you need to put in the bare minimum effort). I'd be willing to guide you through the formatting if the content were any good, but as it stands, I do not believe you have the experience and ability to contribute positively to the RBY analyses project. I am going to lock this thread and I strongly invite you to stop posting in this section until you polish all of your formatting, your understanding of RBY, and your writing abilities, to a much higher level.
 
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