Subterror Behemoth Umastryx [TDIL-EN083] Ultra Rare Psychic the ATK/DEF of all face-up

the ATK/DEF of all face-up monsters your opponent controls become half their current ATK/DEF (even if this card leaves the field)

and/or Xyz): Apply the following effect based on those types

Set: Legendary Decks II Card type: Normal Spell Rarity: Common At the start of your Main Phase 1: Target 3 monsters with different Types in your Graveyard

Destroy all face-up monsters your opponent controls

Subterror Behemoth Umastryx [TDIL-EN083] Ultra Rare Psychic the ATK/DEF of all face-upSet: The Dark Illusion Card type: Flip Effect Monster Rarity: Ultra Rare Attack: 2000 Defense: 2700 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 hand in Defense Position. Once per turn: You can change this card to face