Deus Ex Machina Reditus

Indistructible
Deus Ex Machina Reditus enters the battlefield
with X overload counters on it, where X is
the {x} mana paid. In each your end step, remove
a overload counter.
While it has one or more overload counter on it,
it's a creature card.
{p/c}{p/c}{t}: return target artfact from the
graveyard to your hand.