Card Rulings:Subterror Behemoth Stalagmo

"Subterror Behemoth Stalagmo":

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OCG Rulings

• The effect "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" is a Trigger Effect that activates in the hand. (It does not target. It cannot be activated during the Damage Step.)

• The effect "You can Special Summon this card from your hand in Defense Position" cannot be activated when a face-up monster in your Monster Zone is changed to face-down Defense Position by an effect activated as Chain 2 or higher.

• The effect "Once per turn: You can change this card to face-down Defense Position" is an Ignition Effect. (It does not target.)

• The effect "FLIP: You can discard 1 "Subterror" monster, and if you do, draw 2 cards" is a Trigger Effect that can optionally be activated when "Subterror Behemoth Stalagmo" itself is flipped face-up. (It does not target.)

• The effect "You can discard 1 "Subterror" monster, and if you do, draw 2 cards" can be activated even if "Subterror Behemoth Stalagmo" is flipped face-up during the Damage Step.

• The resolution of "discard 1 "Subterror" monster" and the resolution of "draw 2 cards" are considered to happen at the same time.

Q&A Rulings

• Q: "Subterror Behemoth Voltelluric" and "Subterror Behemoth Stygokraken" are face-up on my field. In this situation, if "Book of Eclipse" is activated and both of those monsters are changed to face-down Defense Position, can I activate the effects of both "Subterror Behemoth Speleogeist" and "Subterror Behemoth Stalagmo" in my hand?

A: In this scenario, even if multiple monsters on your field were flipped face-down at the same time, the effects of "Subterror Behemoth Speleogeist" and "Subterror Behemoth Stalagmo" that Special Summon them cannot both be activated. In this case, you may Special Summon "Subterror Behemoth Speleogeist" (for example) after "Book of Eclipse" resolves, then activate its effect that changes it to face-down Defense Position during your Main Phase, afterward Special Summon "Subterror Behemoth Stalagmo" from your hand, and so on.

• Q: When I activate the "FLIP

  " effect of "Subterror Behemoth Stalagmo", I target a face-down Defense Position monster on my opponent's field. If that monster is "Maiden with Eyes of Blue", what happens?

A: If a face-down Defense Position monster is targeted with the effect of "Subterror Behemoth Stalagmo", that monster is changed to face-up Attack Position normally. In this case, since "Maiden with Eyes of Blue" has 0 ATK, its ATK is not changed by the effect of "Subterror Behemoth Stalagmo".