Galvanic Skald

Avalanche {6}{s} ({6}{s}, Return a Snow permanent you control to hand: Put this card onto the battlefield it gains haste, then at the beginning of your end step return this creature to your hand and you lose 2 life.)
When this creatures enters, each opponent sacrifices a creature, discards 3 cards and loses 5 life
Avalanche abilities you activate cost {2}
less to activate.