Wow my Hitmonlee won. I was NOT expecting that.
Hitmonchan -> Mega Hitmonchan
Typing: Fighting -> Fighting
Abilities: Keen Eye/Iron Fist/Inner Focus -> Analytic
50/105/79/35/110/76 -> 50/135/129/40/155/61 [+30 Atk; +40 Def, +40 Sp.Def, +5 Sp.Atk -15 Spd]
New Moves: None
Oh boy this one was fun. Hitmonchan is a boxer, and I know a fair bit about boxing. Judgeing from what we know about Hitmonchan, the fact he focuses on Jabs [Se: Every dex entry talking about his jabs], and the fact that he is not well-built and learns priority moves and moves such as Agility suggests Hitmonchan is an Outboxer [Although moves like Sky Uppercut and Close Combat suggest he can infight as well]. In fact in PMD Hitmonchan even mentions dancing around his targets, further suggesting outboxing.
So what did I do with Mega Hitmonchan? Turn him into a Counter-puncher. Evasion isn’t really a thing we smile upon, so this is about as close as we get. Mega Hitmonchan’s high defenses are really it taking as little damage as possible [He’s still frail, he only has Base 50 HP after all!] while positioning for a counter-punch. Taking a grazing blow, if you would. Then, he uses the opening to sock it to his foes with a well-timed [Indeed, some would say… Analytical] punch. Don’t cry over the loss of Iron Fist. Iron Fist only grants a 20% boost, while Analytic grants 30%.
Mega Hitmonchan has an ace up his sleeve, however. You remember when I made Mega Cloyster? I specifically put it at Base 40 Speed so it wouldn’t outspeed everything after a Shell Smash. Well, Base 61 Speed is just enough for Mega Hitmonchan to reach 243 speed with a positive nature, and 221 with a neutral nature. [486/442 at +2] While this may seem silly, to run 252 speed on a pokemon with Analytic, Hitmonchan packs Agility. This gives Mega Hitmonchan the option of sacrificing the extra power given by Analytic, to return to it’s generic style of boxing; float like a Butterfree, sting like a Beedrill. In addition, it means Hitmonchan is simply not going to get it’s Analytic boost against many walls. Which fits the lore of a counter-puncher. A wall ain’t gonna punch you; so there’s nothing to counter! Even without speed investment, after an Agility Mega Hitmonchan outruns quite a lot of pokemon. I’m no expert at speed benchmarking, but Tyranitar’s speed felt like a good benchmark.
However, even after using Agility, Mega Hitmonchan can flick the switch back to it's Analytical punches by using Revenge, which has -4 priority. Of course, this comes with the downside of having only two moveslots left to use with Agility, but this flexibility makes Mega Hitmonchan less predictable. [Like any good boxer!] You could be faceing a HP-invested counterpuncher, or a speed-invested Agility Cleaner/Sweeper, or some hybrid of the two designed to hit a benchmark while being as tanky as it can be.
Also, Hitmonchan is pretty unique in access to Agility for Fighting-types. Only Hitmontop; Lucario and Hawlucha get it other than Hitmonchan, and of those, Hitmonchan seems the most fitting for a potential Agility set, besides maybe Hawlucha, but that would push into redundancy territory. I wanted to keep an Agility set a possibility.
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Edit: Forgot there are other Megas to do. Will be editing them in soon.
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Seaking -> Mega Seaking
Typing: Water -> Water
Abilities: Swift Swim/Water Veil/Lightning Rod -> Great Horn [Iron First for Horn/Drill attacks; specifically Fury Attack, Horn Attack, Drill Run, Megahorn and Drill Peck. Although Seaking performs Poison Jab with it's horn, it sadly cannot be boosted. I feel like I can get away with Fury Attack since almost all Horn-useing pokemon learn it.]
80/92/65/65/80/68 -> 80/127/85/40/100/86 [+35 Atk; +20 Def, +20 Sp.Def, +25 Spd]
New Moves: + Baton Pass; + Drill Peck
Let's face it. Water is over-subscribed, and Seaking is one of the worst of a bad bunch. [At least it's not Luvdisc]. Almost whatever we do to poor Seaking, it's not gonna be used.
So I'm just gonna run with one of the oldest gags in Pokemon, and give Seaking an ability to up the destructive power of it's horn, give it more attack and speed, and pretty much call it a day there. Great-Horn Megahorn is not to be laughed at. Even from Seaking.
Oh, and Baton Pass lets Seaking Dry Pass when you predict a switch to keep momentum, or he can pass Agility I guess. It's not like Seaking has a wide movepool, it's like sometimes you see Jolteons Dry Passing. Added a little into Seaking's defenses as well so it might survive the occasional hit.
I might want to re-use this ability when we get to Rhyperior.
Also Seaking learns Peck and Horn Drill/Drill Run. So why not Drill Peck?
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I have nothin' on Jynx and Wheezing. At least, nothin' good.