The damage of fire-type moves are increased by 1.5x its original damage when the user's HP is 30% or lower.
Pokémon with Blaze
|If any of the following Pokémon were introduced before the generation that Blaze was introduced in, then it won't apply to them until then.|
As a Hidden Ability
|If any of the following Pokémon were introduced before Generation V, then they will not have Blaze as their hidden ability until then.|