2 "Gouki" monsters
If a "Gouki" monster(s) is added from the Deck to your hand, except by drawing it (except during the Damage Step): You can Special Summon any number of "Gouki" monsters with different Levels from your hand, but for each one, as long as it remains face-up in your Monster Zone, you cannot Special Summon, except "Gouki" monsters. During your Main Phase: You can Fusion Summon 1 "Gouki" Fusion Monster from your Extra Deck, using monsters from your hand or field. You can only use each effect of "Gouki Sheik Ogre" once per turn.