Naerett, Skilled Vivisector

Deathtouch
Whenever a creature you control would die, instead exile it and draw cards equal to it's power.
{x}{r}: Return target creature you control exiled with Naerett, Skilled Vivisector, where X is equal to it's converted mana cost, to the battlefield under your control, it gains haste. Exile it at the beginning of the next end step. Activate this ability only as a sorcery.