Offensive
Flygon
Type: Ground / Dragon
Base Stats: 80 HP / 100 Atk / 80 Def / 80 SpA / 80 SpD / 100 Spe
Ability: Levitate
Flygon is one of the premier Dragons in the UU metagame, boasting good Attack and Speed stats alongside great coverage options. It can be run as either a wallbreaker running Choice Band to inflict big damage to anyone who wants to take it head on, whilst a Choice Scarf gives Flygon great revenge killing qualities, outspeeding the entire unboosted metagame. Outrage and Earthquake are it’s best STAB options, although Dragon Claw can be used in lieu of Outrage if you’re worried about being locked into it. It has various coverage options to deal with a range of threats throughout the UU meta too. Stone Edge or Rock Slide can deal with Darmanitan, Heracross, and Victini, whilst Superpower handles Umbreon, Aggron, and Mega Absol. Crunch hits Mew, Jirachi, Slowbro, and Metagross hard, and the utility of U-Turn is always a useful thing to carry. It’s also one of the few effective Defoggers in the tier, although you should run a Life Orb if so, so you aren’t locked into it on a Choice set. An immunity to Ground-types can give you a clean switch-in too, and once it’s in, Flygon can clean up late game once it’s checks have been dealt with.
Offensive
Toxicroak
Type: Poison / Fighting
Base Stats: 83 HP / 106 Atk / 65 Def / 86 SpA / 65 SpD / 85 Spe
Ability: Anticipation / Dry Skin / Poison Touch
Despite the weather nerf sending Toxicroak down a tier, it’s actually gained a fair amount this gen. It’s one of the more reliable counters for the new Fairy typing, and the only Fighting-type that isn’t scared out by them. Gunk Shot received an accuracy buff, making it a bit more of a reliable STAB option, although Poison Jab can be a safer, albeit weaker, choice. Drain Punch is a great STAB option with the added benefit of recovering HP, and priority in Sucker Punch means it can’t be revenge killed so easily. It can boost it’s already impressive base 106 Attack stat with Swords Dance, and combined with a Life Orb, it can do massive damage to anything that dares attack it. The premier defensive Pokemon in the tier, Florges, is absolutely terrified of Gunk Shot, but it’s most useful ability, Dry Skin, gives it an immunity to Water-type attacks too, effectively making Toxicroak a very good check to Mega Blastoise, Sharpedo, Suicune, and Slowbro. Dry Skin also regains HP if hit with a Water-type attack, so Scald won’t just not burn, it’ll actually heal Toxicroak. It also has access to Knock Off, hurting the Psychic-types that would happily switch into it badly. Toxicroak may have fallen down a tier this gen, but it has all the tools to be very effective in XY UU.