Number 55: Gogogo Goliath

2 Level 4 monsters All monsters you control gain 800 DEF. You can detach 1 Xyz Material from this card, then target 1 Level 4 EARTH Rock-Type monster in your Graveyard; add that target to your hand. You can only use this effect of "Number 55: Gogogo Goliath" once per turn.

Rock EARTH XYZ Monster 4 xyz