Guardian Kay'est [LCYW-EN133] Common Quick Play Spell you can return 1 face-up

you can return 1 face-up "Crystal Beast" card you control to the top of its owner's Deck

If it destroys your opponent's monster by battle

Set: Structure Deck: Gates of the Underworld Card type: Effect Monster Rarity: Common Attack: 0 Defense: 0 When your opponent's monster declares a direct attack: You can Special Summon this card from your hand

Set: Starter Deck: Joey Card type: Normal Spell Rarity: Common Destroys 1 Magic Card on the field

Guardian Kay'est [LCYW-EN133] Common Quick Play Spell you can return 1 face-upSet: Legendary Collection 3: Yugi's World Card type: Effect Monster Rarity: Common Attack: 1000 Defense: 1800 Cannot be Summoned unless you control a face up "Rod of Silence Kay'est". This card is unaffected by Spell effects and cannot be targeted for attacks, but does not prevent your opponent from attacking you directly.