The user covers the target in a powder that explodes and damages the target if it uses a Fire-type move.
Explodes if the target uses a Fire move this turn, damaging it for 1/4 its max HP and preventing the move (but still using PP). The explosion occurs even under heavy rain. Pokémon with Magic Guard do not take damage but will still be unable to execute a move. If a frozen Pokémon would have thawed itself out using Fire-type move, it still thaws out. A Fire-type Natural Gift will not be executed, but the Berry will not be consumed.