Flash Fire in Pokémon Brilliant Diamond & Shining Pearl

Absorbs Fire-type moves and boosts its own Fire-type moves after activation.

An applicable Fire-type move activates this Ability instead of damaging the Pokémon; its own Fire-type moves then receive a 50% boost until it switches out. In Generation VIII, the Ability can activate while the Pokémon is frozen. Outside battle in BDSP, a lead holder gives a 50% chance to force an eligible Fire-type encounter when that type is present in the encounter table.