Vat of Rebirth

Whenever another artifact or creature you
control is put into a graveyard from the battlefield, put an oil counter on Vat of Rebirth.
{2}{b}, {t}, Remove four oil counters from Vat of Rebirth: Return target creature card from your graveyard to the battlefield. Activate only as a
sorcery.
"Death is not an escape anymore. You will still be of
use."