Chishiro, the Shattered Blade + Reins of the Vinesteed + Phyrexian Altar

Prerequisites

• You control at least one Spirit.

Steps

1. 1Cast Reins of the Vinesteed by paying , attaching it to a Spirit.
2. 2Reins of the Vinesteed enters the battlefield, triggering Chishiro, creating a 2/2 Spirit token.
3. 3Activate Phyrexian Altar by sacrificing the creature with Reins of the Vinesteed attached, adding one mana of any color.
4. 4The creature dies, triggering Reins of the Vinesteed, returning Reins of the Vinesteed from your graveyard to the battlefield attached to a Spirit.
5. 5Reins of the Vinesteed enters the battlefield, triggering Chishiro, creating a 2/2 Spirit token.
6. 6Repeat from step 3.

Effects

• Infinite colored mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers