Koffing

Psychic 60 HP Stage: Basic Common

Offensive Gas

Flip a coin. If heads, the Defending Pokémon is now Confused and Poisoned.

Gas Bomb

Koffing does 30 damage to itself, and don't apply Weakness and Resistance to this damage.

Lighter-than-air gases in its body keep it aloft. The gases not only smell, they are also explosive.