Reanimation Module

When Reanimation Module enters the battlefield,
exile a creature card from your graveyard with a
reanimation counter on it.
{x}, {t}: Put target creature card exiled with a reanimation counter with converted mana
cost X onto the battlefield under your control
with a module counter on it, then exile Reanimation
Module. Return it to the battlefield under your control when a creature with a module counter
leaves the battlefield.