Performapal Splashmammoth

[ Pendulum Effect ] 
Once per turn, when a Fusion Monster(s) is Special Summoned to your side of the field (except during the Damage Step): You can Special Summon 1 face-up "Odd-Eyes" Pendulum Monster from your Extra Deck.

[ Monster Effect ] 
During your Main Phase: You can Fusion Summon 1 Dragon-Type Fusion Monster from your Extra Deck, using monsters you control as Fusion Materials. You can only use this effect of "Performapal Splashmammoth" once per Duel.