Here I come again, with even more achievement ideas! (yeah I'm happy when people try and sucessfully get the achievements I created)
1)
Somnambulism - KO a foe while asleep. Komala isn't allowed.
2)
Zero Escape - Hit a foe in a semi-invulnerable state (Dig, Fly, Dive, etc.).
3)
Make Pokémon Great Again - Have Aurora Veil (OR Reflect
and Light Screen), Mist and Safeguard up at the same time.
4)
Pokétinder - Force every opposing Pokémon in with Roar and/or Whirlwind and/or Red Card over the course of a game. Opposing Eject Buttons do count as forcing a foe in.
(note: if this one is considered as too RNG-reliant, feel free to remove it)
5)
Marked for Success - Use a team of Pokémon with their respective signature move.
6)
Melee's Pokémon Stadium - Set every Terrain over the course of a match
7)
Natural Habitat - Use a Terrain and a Pokémon with an Ability that takes advantage of the Terrain. The second Pokémon must be sent while the Terrain is active. (that's just Gogoat and A-Raichu though)
8)
Identity Crisis - Use a Pokémon with the set of one of its alternate forms (e.g. Tornadus-T with a set for Tornadus-I, or Protean Gren with Water Shuriken/Hydro Pump/Dark Pulse/U-Turn). Screenshot and link to a Smogon set required. Alolan Forms count as alternate forms.
Also
GMars shold we tone down the
Egyptian Curse achievement? Maybe passing Mummy to only half the opposing team would be easier.