Chishiro, the Shattered Blade, Cloudstone Curio, Phyrexian Altar, and Primal Vigor

Prerequisites

• Chishiro, the Shattered Blade on the battlefield
• Cloudstone Curio on the battlefield
• Phyrexian Altar on the battlefield
• Primal Vigor on the battlefield
• You have an Aura card in hand with mana value one or less
• You control an Aura with mana value one or less
• You have enough mana available to cast the Aura in hand

Steps

1. Cast an Aura with mana value one or less by paying its mana cost, targeting any creature you control
2. The Aura enters the battlefield, triggering Cloudstone Curio and Chishiro
3. Resolve the Cloudstone Curio trigger, choosing to return any other Aura with mana value one or less from the battlefield to your hand
4. Resolve the Chishiro trigger, creating two 2/2 Spirit creature tokens
5. Activate Phyrexian Altar by sacrificing a Spirit token, adding one mana of any color
6. Repeat

Results

• Infinite colored mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count