Magmos, the Unleashed

Reach, Trample
Magmos, the Unleashed costs {x} less to cast
where x is the amount of non combat damage
you have dealt this turn.Prevent all combat
damage that would be dealt to Magmos, the
Unleashed. If a source would deal non combat
damage to Magmos, the Unleashed itinstead deals
twice that much damage, When Magmos, the Unleashed
dies return target demon card from your
graveyard to the battlefield tapped.