Forum:Fusion subs in graveyard?

Do fusion subs work while they are in the graveyard? I only play casually. But when I was playing with my friend last night he told me that my king of the swamp wouldnt work in the graveyard cause he is just treated as "King of the Swamp" And doesnt get his effect. Only its name while in the graveyard so my miracle fusion wouldnt work. Anyone know the for sure answer? Or any place I could show him some proof if im right :)