This card can be summoned easily with "Gogogo Giant" and any other "Gogogo" monster in your graveyard.
By detaching the "Gogogo Giant" from this card as Xyz Material, you can select it in the Graveyard and add it to your hand again to summon another Xyz Monster for your next Normal Summon, assuming there is another correct target in the Graveyard.
If you have a "Swordsman of Revealing Light" in play (whether it's face-up or set), combo it with this card to turn it into a 3200 point defender that can wipe out most attacking monsters with it's ability. Since "Swordsman's" ability can only be activated to respond to a Direct Attack, you'll need a properly summoned "Goliath" in the graveyard and a set "Xyz Reborn". When a monster attacks you directly, activate "Swordsman" from your hand and chain to it "Xyz Reborn" to revive "Goliath". This will give "Swordsman" the 3200 DEF points it needs to destroy any opposing monster during resolution.