Duoterion (Common)

You can discard this card, add 1 "Bonding" Spell/Trap from your Deck to your hand. If this card is Normal or Special Summoned: You can target 1 "Hydrogeddon", "Oxygeddon", or "Duoterion" in your GY, Special Summon it. You can only use each effect of "Duoterion" once per turn.