Elemental Hero Thunder Giant [DR3-EN216] Ultra Rare BT5-040 You can only use this

You can only use this effect of "Darklord Tezcatlipoca" once per turn

except for the Synchro Summon of a Dragon monster

If this face-up Fusion Summoned card in its owner's control leaves the field because of an opponent's card effect: You can Special Summon 1 "Ultimate Ancient Gear Golem" from your Extra Deck

and halve your opponent's Life Points

Elemental Hero Thunder Giant [DR3-EN216] Ultra Rare BT5-040 You can only use thisSet: Dark Revelation Volume 3 Card type: Fusion Effect Monster Rarity: Ultra Rare Attack: 2400 Defense: 1500 "Elemental Hero Sparkman" + "Elemental Hero Clayman" This monster cannot be Special Summoned except by Fusion Summon. Once per turn, by discarding 1 card from your hand, select and destroy 1 face up monster on the field with original ATK less than the ATK of this card.