Gem-Knight Fusion (HA05-EN026) - Hidden Arsenal 5: Steelswarm Invasion Unlimited

Send, from your hand or your side of the field to the Graveyard, the Fusion Material Monster that are listed on a "Gem-Knight" Fusion Monster Card, then Special Summon that Fusion Monster from the Extra Deck. (This Special Summon is treated as a Fusion Summon.) If this card is in the Graveyard: You can banish 1 "Gem-Knight" monster from your Graveyard; add this card to your hand.