Rulings powered by The Netrep API. You can remove from play monsters both in your hand and your Graveyard, so you can remove from play only monsters in your Graveyard, only monsters in your hand, or monsters in your hand and your Graveyard. The Fusion Monster is treated as if it was Fusion Summoned with 'Dark Fusion', but the effect of 'Dark Fusion' that prevents the monster from being targeted by the opponent's card effects is not applied.
Duelist Pack 6: Jaden Yuki 3
Remove from play, from your hand or your Graveyard, the Fusion Material Monsters listed on a Fusion Monster Card that can only be Special Summoned with 'Dark Fusion', and Special Summon that monster from your Fusion Deck. (This Special Summon is treated as a Fusion Summon with 'Dark Fusion'.)