Winds of Qal Sisma

Oracle Text

Prevent all combat damage that would be dealt this turn.

Ferocious — If you control a creature with power 4 or greater, instead prevent all combat damage that would be dealt this turn by creatures your opponents control.

Card Rulings

11/24/2014 If you control a creature with power 4 or greater as Winds of Qal Sisma resolves, the ferocious ability will apply. Combat damage dealt by creatures your opponents control will be prevented, even if you no longer control a creature with power 4 or greater as that damage would be dealt.