De-Synchro

Edison Card Text
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.
The Duelist Genesis • 2008-09-02
Targets
Note: the first part of the effect
No Damage Step effect
Banlist • Unlimited
Interactions
If you Synchro with a stolen monster and later use De-Synchro, do you Summon its materials?!
A Synchro Monster made with a stolen monster is targeted by De-Synchro.
No. You can only Summon materials that are in your Graveyard, so you usually will not Summon them.
If De-Synchro is used on a Synchro made with a stolen monster, do the materials return?!
The Synchro monster is targeted by De-Synchro.
No, unless all materials are in your Graveyard.
Rulings
edisonformat.net
●De-Synchro targets 1 face-up Synchro Monster.
●If a Synchro Material Monster used in the Synchro Summon is removed from the GY, it Cannot be Special Summoned with De-Synchro, even if it is returned to the GY.
edisonformat.com
"De-Synchro" targets 1 face-up Synchro Monster.
If a Synchro Material Monster used in the Synchro Summon is removed from the Graveyard, it cannot be Special Summoned with "De-Synchro", even if it is returned to the Graveyard.