Soulcatcher

Changeling (This creature is every creature type.)
You can choose not to untap Soulcatcher during
your untap step.
{t} Gain control of target creature for as long as Soulcatcher remains tapped. Whenever you gain control of a creature this way, put a +1/+1
counter on Soulcatcher.
You may cast Soulcatcher from your
graveyard.