The Soul stone

At the begining of your upkeep, remove all power counters from The Soul stone and then add X
power counters to The Soul stone where X is the number of Infinity stones you control.
{t}, Remove 1 power counter: Exile target creature
from it's owers graveyard.
{t}, Remove 2 power counters: Put target creature
into it's owners graveyard.
{t}, Remove 4 power counters: Return any number of creature cards from each players graveyard to the battlefield under your control.