De-Synchro [TDGS-EN049] Rare Ultra Rare Once per turn: You can

Once per turn: You can declare 1 Monster Type

You can only use this effect of "D/D Savant Kepler" once per turn

except "Elemental Hero Shadow Mist"

if this effect was activated this turn: Destroy this card

Set: Structure Deck: The Dark Emperor Card type: Effect Monster Rarity: Common Attack: 1600 Defense: 0 Any card sent to the Graveyard is removed from play instead

De-Synchro [TDGS-EN049] Rare Ultra Rare Once per turn: You canSet: The Duelist Genesis Card type: Normal Spell Rarity: Rare Attack: 0 Defense: 0 Select 1 face up Synchro Monster. Return it to its owner's Extra Deck. Then if all of the monsters that were used for the Synchro Summon of that monster are in your Graveyard, you can Special Summon them.