Heavy Armored Knight Babeldecker

You can Normal Summon this card without Tributing. If this card is Normal or Special Summoned: You can Special Summon 1 EARTH Machine monster from your hand. If your opponent activated a card or effect this turn: You can Special Summon 1 Rank 10 EARTH Machine monster from your Extra Deck using this card you control as material (this is treated as an Xyz Summon). You can only use each effect of "Heavy Armored Knight Babeldecker" once per turn.