Valkus, slayers companion

Double strike, trample, haste
When Valkus attacks, he deals 1 damage to each goblin defending player controls, put a +1/+1 counter on each creature you control.
When Valkus enters the battlefield, if he was cast, he deals 2 damage to target player if {r}{r} was spent to cast him, and you gain 2 life if at least {w}{w} was spent to cast him.