Gellenduo (DLG1-EN112) - Dark Legends Unlimited Set_Duelist Revolution add the top card of

add the top card of their Graveyard to their hand

and if you do that

If you cannot pay

Card Text"Cyber Dragon" + "Cyber Dragon" A Fusion Summon of this card can only be done with the above Fusion Material Monsters

Card TextYou can only activate this card by Tributing 1 "Dark Magician" on your side of the field

Gellenduo (DLG1-EN112) - Dark Legends Unlimited Set_Duelist Revolution add the top card ofTypeFairy Effect Monster AttributeLIGHT Level Rank4 ATK DEF1700 Card TextThis card cannot be destroyed by battle. When this card's controller takes any damage, destroy this card. If you Tribute Summon a LIGHT Fairy Type monster, you can treat this 1 monster as 2 Tribute Monsters for the Tribute Summon.