Edison format ruling
Twin-Headed Behemoth
Card effect (current official text)During the End Phase, if this card is in the GY because it was destroyed on the field and sent there this turn: You can Special Summon this card, but its ATK/DEF become 1000. You can only use this effect of "Twin-Headed Behemoth" once per Duel.
Rulings
- The effect of this card is only activated when it is destroyed. It will not activate if Tributed, discarded, or sent to the GY.
- When Twin-Headed Behemoth is Special Summoned by its own effect and is equipped with Megamorph it is the original ATK/DEF that is doubled or halved. (ATK 3000 / DEF 2400 if doubled, ATK 750 / DEF 600 if halved)
- The opponent cannot activate Bottomless Trap Hole when Twin-Headed Behemoth is Special Summoned by its own effect, because its ATK is already changed to 1000 at the time of Summoning.
- If flipped face-down, and then Flip Summoned, it will have its original ATK/DEF, but its condition is not reset.
- If equipped to Relinquished and destroyed, you can use the effect of this card and it will be Special Summoned on your side of the field with ATK/DEF of 1000 points. (If you have not already used this effect once.)
- If this card is controlled by your opponent and is destroyed, it will be Special Summoned on your side of the field with ATK/DEF of 1000 points. (If you have not already used this effect once.)
- If Twin-Headed Behemoth would be Special Summoned by its own effect, but your Monster Card Zones are full, or the effect of Scapegoat prevents you from Summoning, it still considered that its effect was activated, and you cannot use it again in the current Duel.
- You may still Special Summon Twin-Headed Behemoth with the effect of Monster Reborn, etc. after its effect has been used once.
- If you activate Monster Reborn to Special Summon Twin-Headed Behemoth in the turn it was destroyed, its effect has not yet been used, and it will activate the next time it is destroyed.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.