Only in Sun & Moon
Gift: Poké Pelago
You won't find Drifblim in the wild in this game — you get it as a gift or by evolving Drifloon (Level 28).
For the look, the best colour match is Heal Ball or Dusk Ball.
Evolution: Drifloon → Drifblim (Level 28).
Drifblim in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)