1 Rock monster + 1 Level 7 or higher monster Must first be Special Summoned with "Fossil Fusion". This card can make a second attack during each Battle Phase. If this card attacks a Defense Position monster, inflict piercing battle damage. During your opponent's turn (Quick Effect): You can target 1 monster in your opponent's GY; discard 1 card, and if you do, Special Summon that target to your field. You can only use this effect of "Fossil Warrior Skull King" once per turn.
How to Get
The good thing about this one is that not only it's strong, but also, the material does not rely on opponent's Graveyard.