FLIP: You can change all other face-up monsters on the field to face-down Defense Position. You can only use this effect of "Subterror Behemoth Ultramafus" once per turn. When a face-up monster you control is flipped face-down, if you control no face-up monsters: You can Special Summon this card from your hand in Defense Position. Once per turn: You can change this card to face-down Defense Position.
| Printing | Rarity | 1st Edition | Unlimited | Actions |
|---|---|---|---|---|
INOV-EN084Invasion: Vengeance | UR | 1st | Unl. |
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