lol at least this gives me something to post about today
Like Phuquoph said, EVs spreads are the issue here, though not quite for the reason you may expect. Your use of the word "set" in "Gyarados set seems to indicate you've just put four moves on a pokemon that's capable of sweeping off the bat and maximizing those chances, which is fine in theory.
However, Dragon Dance and Taunt are no-brainers on a Gyarados, and it doesn't take a genius to add two more moves to round out a "set". More importantly, though, you seem to not know the reasoning behind Ice Fang on my Gyarados, and when you say "doesn't hit hard" I have a feeling you're still talking about just the moves and their type coverage, and not the the fact that I purposely gave my Gyarados, a pokemon with 125 Base Attack, only 16 Atk EVs though as I said earlier EVs are the most important.
So, just 16 EVs in attack...where are the rest of them? In HP and Def, with a few in speed. Why would I do that? The reason is Garchomp. I don't know if you missed the 27-page thread about how much of a threat "Gaburiasu" seemed poised to pose in DP, but it was stated a few times that Gyarados, with its Intimidate, immunity to EQ, resistance to Fire Fang/Blast and Ice Fang would be a solid choice in handling Garchomp. Garchomp is behind much of the reasoning behind my set (and with "set" I include EVs, nature and moves), and these numbers will hopefully shed some light on that reasoning. Dusting off my calculator:
Jolly, 359 Attack Garchomp's Swords Danced, Intimidated Dragon Claw on a 384HP/235Def (near-max/60%) Gyarados: 46-54%
Jolly, 359 Attack Garchomp's Swords Danced, Intimidated Dragon Claw on a 332HP/194Def (4EVs/min) Gyarados: 64-76%
I'm not implying you would run max-Atk/Spd and therefore 4EVs/min-Def on your own Gyarados, but this gives you an idea of what is needed to start becoming a good Garchomp counter. What you need next is Ice Fang:
Adamant, 319 Attack Gyarados's Ice Fang on a 360HP/226Def (4EVs/min) Garchomp: 75-88%
Not a OHKO, but guess how much attack Gyarados needs to OHKO this virtually no-defense Garchomp guaranteed:
Adamant, 430 Attack Gyarados's Ice Fang on a 360HP/226Def (4EVs/min) Garchomp: 100.12-117.65%
And, of course, Gyarados can't reach 430 attack without a Choice Band, since it tops out at 383 Attack Adamant with 252 Atk EVs. However, I'm still posing an immediate threat to Garchomp with little to no risk to myself switching in, adhering to the definition of "counter" I amended my RMT announcement with yesterday. Few other pokemon can boast this without wildly overspecializing, with Misty's jokingly proposed Choice Scarf Bold Suicune with Max Def, 266 SpA and the rest of the EVs in HP being the best example of such overspecialization.
To sum up the Gyarados issue, I have near max HP and just enough Atk EVs to reach the first magic stat point at 319. The rest of the EVs are going into Defense and Speed, with more respect to Speed given that I know "the rest in Defense" will be a lot. If I solely want this Gyarados to best deal with Garchomp, I would run exactly 223 Speed and therefore 239 Defense. The spread I've posted the most has 227 Speed and therefore 235 defense, which would reach 340 speed and outspeed Modest Sceptile and Adamant Dugtrio (339) and tie Infernape that were EVed to beat those pokemon. That was a slight oversight on my part as I'd obviously want to outspeed those Infernape by at least one and not tie them, but I've since determined that 234 Speed would be best if I don't just want to focus on Garchomp, as that would allow me to reach 351 Speed after a DD, and therefore outpace all non-Scarf Gengar (350) and all Infernape (346), resulting in 228 Defense. This is minor EV-tweaking, yes, but absolutely imperative to keep in mind when you're making "sets" for pokemon, even those that look as simple as Gyarados.
So Bekins, the question is: are you more worried about Ludicolo and Skarmory (twice, lol) as threats or Garchomp and Salamence? I know the pokemon I'm missing out on by foregoing Waterfall on my bulky set, which is why I'm breeding at least three different EVs spreads ingame now. But even if you were worried about Ludicolo:
Adamant, 319 Attack Gyarados's Dragon Danced Return on a 364HP/263Def Ludicolo: 36-43%
Granted, it's very likely you wouldn't be running my EV spread that only has 16 Atk EVs. But guess how much attack actually "ridiculizes Ludicolo" and therefore 2HKOs it guaranteed after a DD:
Adamant, 461 Attack Gyarados's Dragon Danced Return on a 364HP/263Def Ludicolo: 53.134-62-439%
You need to do, minimum, 53.125% damange to a pokemon to guaranteed a 2HKO assuming Leftovers recovery. Gyarados therefore needs 461 attack to threaten that on Ludicolo, which it obviously can't get to after one DD. Since a real Ludicolo would both switch in the second Gyarados shows up and have an Electric attack if it actually wanted to counter Gyarados (since Grass Rope, even STABbed, will not 2HKO without a major EV/Nature/Choice Specs investment):
Bold, 216 SpA (min) Ludicolo's Hidden Power Electric on a 384HP/236SpD (near-max/min) Gyarados: 49-58%
I'm giving Ludicolo the benefit of the doubt of running HP Electric, like a Relaxed Swampert should in my opinion if it wants to counter Gyarados, and not the Thunderpunch you suggested it would have since the latter is physical now. And that's my Gyarados — here's one with 4HP EVs (again, not assuming you'd run just 4HP EVs but as I hope is clear by now EVs are ridiculously important):
Bold, 216 SpA (min) Ludicolo's Hidden Power Electric on a 332HP/236SpD (4EVs/min) Gyarados: 57-67%
So just so you know, Bekins, you'd be looking at being 2HKOed unless you ran a ton of HP EVs.
As far as Skarmory is concerned, I love words and typing and all but I've literally posted why Skarmory is the worst pokemon to be in on Gyarados at least six times as well
so read this. Everything there is valid except for the Drill Peck on Gyarados at the end, but those are 11-14% net on Gyarados assuming Leftovers recovery, and 5.63-7.71% when Skarmory's Intimidated (and if it isn't clear by that post I will switch my Gyarados into Skarmory every day of the week).
Of course, I don't profess to know what the metagame will look like in two years, two months or even in two weeks when DP hits the states, but as far as I'm concerned my Gyarados is going to be one of the most solid Garchomp counters.
As for Choice Glasses Salamence, you have even less of a case. "My" set is considered to be standard now for the reasons I've posted about a dozen times now, which actually makes me feel less and less bad about it being called Jumpmence every time I do have to post the reasoning behind it because the set itself is evidently not quite intuitive enough! And, as above, the issue here will have a bit to do with EVs, more specifically in this case whether you plan on running a nature that does not hinder Attack. Rash would probably be the non-Modest natuer of choice, since even with Intimidate, Salamence is not going to want to lower its defense because it's switching in on physical pokemon much moe than special ones.
Modest, 350 SpA Salamence's Choice Specs Draco Meteor on a 688HP/306SpD (60%/min) Bold Blissey: 37.81-44.43% (19-22% after the drop)
Modest, 275 Attack (min) Salamence's Brick Break on a 688HP/130Def (60%/max) Bold Blissey: 33-39%
Rash, 306 Attack (min) Salamence's Brick Break on a 688HP/130Def (60%/max) Bold Blissey: 37.18-43.69%
So, since Draco Meteor will always outdamage Brick Break unless you start investing EVs into Atk, it really becomes of question of whether or not you want to be locked into Brick Break on a pokemon you can hardly even 3HKO (needing to do 37.5% minimum to guarantee that). Brick Break wouldn't prevent Blissey from stalling, and I'm pretty sure I'd switch something like Tyranitar or Heracross or Weavile into Blissey if I think it's going to Softboiled off the Draco Meteor damage anyway.
If you're honestly worried about PP, just use Dragon Pulse like Phuquoph said:
Modest, 350 SpA Salamence's Choice Specs Dragon Pulse on a 688HP/306SpD (60%/min) Bold Blissey: 24-29%
The last thing you should keep in mind is that, since you probably aren't even 3HKOing Blissey with BB, it can and will stay in on you to Ice Beam, which is the reason my examples don't have 714HP. 688HP/130Def/147Spd allows for 212 SpA:
Bold, 212 SpA Blissey's Ice Beam on a 332HP/196SpD (4EVs/min) Modest Salamence: 90-106%
Bold, 212 SpA Blissey's Ice Beam on a 332HP/176SpD (4EVs/min) Rash Salamence: 100-118%
So that, coincidentally, is, always a OHKO. As far as the Starmie and Claydol you mentioned are concerned, you're guilty of one of the most basic oversights of a Super Effective Hidden Power — it's only 70 × 2 = 140. Meteoric Swarm would do 140 × 1.5 = 210 to those pokemon. Since Dragon Pulse is always a 2HKO on Swampert, it can't switch in, and if you're heads up with Swampert, there's a great chance that Draco Meteor will OHKO.
Read this for further clarification on why a 4× effective HP on Salamence still isn't a good idea — it regards Gyarados and therefore HP Electric but the fundamentals are the same.
par for the course woot