Dr. Doom, Monarch

Flying
{w}{u}{b}: exile target card from a graveyard and
create an X/X colorless artifact Doombot
creature token with flying, where X is equal to
the exiled card's converted mana cost.
Activate only if this card is in the command zone.
Dr. Doom gets +X/+X where X is equal to the
number of Doombots you control.