Black Skull Dragon

Flying, Trample, Offering, Fusion 2(You may cast
this creature from your side board if you sacrifice
two creatures with the same type as this one.)
Archfiend—Fiends count for twice their
mana value for this creatures Offering.
Molten Fire Ball—At the end of combat on your
turn, if this creature didn't attack, deal 4 damage
to each opponent.