Sai of the Shinobi Combos
Koll, the Forgemaster + Blood Pet + Sai of the Shinobi
Koll, the Forgemaster + Reckless Barbarian + Sai of the Shinobi
Koll, the Forgemaster + Rograkh, Son of Rohgahh + Sai of the Shinobi
Koll, the Forgemaster + Sai of the Shinobi + Ashnod's Altar
Combo result
Infinite colorless mana. Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite storm count.
Prerequisites
All permanents on the battlefield. You have a creature card in hand that can be cast using {C}{C}. You have enough mana to cast the creature card in hand.