SpaceKnight Venom

Reach, Spider Senses, Rampage 2, Persist, Frenzy 2, First Strike, Lifelink
{1}{b}: Regnerate Agent Venom
{t}{x}: Deal X damage to target creature and half of X to target player, exile SpaceKnight Venom from anywhere and play Agent Venom for no mana cost.
{t}{x}{b}{b}: Destroy X target creatures under 6 toughness. You may only use this ability once per summon.