EP17-JP006 Subterror Behemoth Umastryx Super Rare

FLIP: You can target 1 monster your opponent controls; banish it. You can only use this effect of "Subterror Behemoth Umastryx" 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 handin Defense Position. Once per turn: You can change this card to face-down Defense Position.