[ Rock / Fusion / Effect ]3 "Gem-Knight" monsters
Must first be Fusion Summoned with the above Fusion Materials.
You can only Special Summon "Gem-Knight Lady Brilliant Diamond(s)" once per turn.
Once per turn: You can send 1 face-up "Gem-Knight" monster you control to the Graveyard, and if you do, Special Summon 1 "Gem-Knight" Fusion Monster from your Extra Deck, ignoring its Summoning conditions.
ATK/ 3400
DEF/ 2000