Mystic Box [LCYW-EN076] Common Psychic[+40] add that lost ATK to

add that lost ATK to the other monster

Control of those monster switches back during the End Phase of this turn

Set: Legendary Duelists: Sisters of the Rose Card type: Quick Play Spell Rarity: Ultra Rare If your opponent controls more monsters than you do: Special Summon 1 Level 4 or lower EARTH Machine monster and 1 Level 5 or higher EARTH Machine monster from your Deck in Defense Position

While "Umi" is face-up on the field

Mystic Box [LCYW-EN076] Common Psychic[+40] add that lost ATK toSet: Legendary Collection 3: Yugi's World Card type: Normal Spell Rarity: Common Attack: 0 Defense: 0 Target 1 monster your opponent controls and 1 monster you control; destroy the first target, then give control of the second target to your opponent.