From Serebii:
>Attack power increases by 30% if the Pokémon is the last Pokémon to attack this turn.
From Bulbapedia:
>If the user targets a Pokémon that has already acted this turn, the power of the user's move is increased by 30%.
I'm just wondering if it's only physical attacks that are boosted (That's how I interpret Serebii's one), or if special attacks get the boost as well?