Phyrexian Dreadnought
Phyrexian Dreadnought {1}
Artifact Creature - Dreadnought | Power/Toughness: 12 / 12
Trample

When Phyrexian Dreadnought enters the battlefield, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater.
Latest set: [MIR] Mirage ( R · #315 )