What does Pyroak's current movepool and typing combination imply it could do?
Pyroak has all of the following in its movepool:
- Strong and/or reliable STAB moves on both attacking sides.
- Ground coverage in Earth Power and Earthquake.
- Useful status moves like Stealth Rock, Toxic, Wisp, and Leech Seed.
- Flare Blitz/Wood Hammer + Rock Head
- Status-spreading attacking moves in Lava Pulme and Scorching Sands
- Rock Polish
- Physical setup in Dragon Dance and Swords Dance
It's meager 70 Base Attack leaves a lot to be desired: although Flare Blitz does hit harder than Flamethrower at equal investment, the former's worse PP, reliance on Rock Head to avoid recoil, and the abundance of anti-Physical metagame trends make it a lot harder to justify, especially when Special sets have about equal strengths.
95 Special Attack still isn't impressive by today's standards, but is enough to get by with strong STAB and powerful utility attacks as can be seen by Tapu Fini. Pyroak's low Speed, however, holds it back from really working as an offensive threat unless it finds time to setup.
The big selling point on its stat spread is its defenses. 120/105/90 bulk is really impressive and helps a lot in letting Pyroak tank hits, and gives it flexibility on how it wants to invest and what Pokemon it can comfortably stay in on or switch into.
What is currently gatekeeping Pyroak from being successful in any given role? How do we mitigate said weakness(es)?
Pyroak is attempting to be two different Pokemon at the same time. As a Grass, it doesn't exactly beat Waters or Grounds, the two types you generally want a Grass type to be good into, and it faces an awful vulnerability to all hazards and chip damage, notably Stealth Rock. All of the viable Grasses have some means of negating chip, whether through movepool, ability, or typing, which give them a lot more staying power. On the flip side, bulky Fire types tend to struggle, as despite having the second-most resistances in the game, Fire has three crippling weaknesses. Adding the Grass type does more harm than good: it adds three more weaknesses and removes the useful resistances to Fire and Ice.
What you end up with is a Pokemon that faces danger from too many things at once to reasonably remain on the field. It could be a neat Rocker, but every common defogger is generally at an advantage versus it. Even Corviknight, who you'd think would be a prime target, naturally outspeeds and threatens big damage onto Pyroak with Brave Bird. It has the coverage to hit most Pokemon SE or neutrally, but lacks good offensive stats to make that work. It's a wall that has to rely on the inconsistent, low-PP Synthesis to stay healthy, and is also a wall that doesn't really beat anything.
A lot of Pokemon thay it could stand up against, it actually just loses to or gets crippled by. For example, Pyroak looks like it could be a good Ferrothorn switch-in, but it can't safely come in on it lest it get hit by Knock Off or Toxic, both of which wear down Pyroak over time. This is a problem that extends into practically any good matchup it appears to have: Pyroak is simply too easy to cripple and exploit with chip damage, and this inability to stay in safely versus
utility Pokemon is what I consider to be the main issue with it right now, even beyond the obviously lacking offensive capabilities. Trying to find opportunities to get Pyroak in safely is hard, and then having it do something worthwhile is a task on its own.
What roles could Pyroak feasibly fill in the CAP metagame?
Its unique STAB combo sticks out: a Grass that is able to beat the opponent's Grass-types has potential, especially with its array of useful support moves, chief among them being Leech Seed, which is primarily blocked by the type Pyroak matches up well against, in a vacuum. The added Ground coverage is huge for it, as it takes care of other Fire-types that would want to come in on it. Ground/Fire is a great offensive duo on its own, but having Grass STAB means that the bulky Waters and Grounds which would normally be tasked with handling this combo are now in serious danger.
Pyroak is, quite literally, directionless in design. There's a lot we can take this in since little is actually restraining what we can do. You could legitimately buff Pyroak into a Stallbreaker, a Setup Sweeper, or a Tank, and not really need to change much about it to accomplish that.