Siona, Captain of the Pyleas + Reins of the Vinesteed + Phyrexian Altar

Prerequisites

• You control another Human or Solider.

Steps

1. 1Cast Reins of the Vinesteed by paying , enchanting any Human or Soldier you control besides Siona.
2. 2Siona triggers, creating a 1/1 Human Soldier creature token.
3. 3Activate Phyrexian Altar by sacrificing the creature enchanted by Reins of the Vinesteed, adding one mana of any color.
4. 4The creature dies, triggering Reins of the Vinesteed, returning Reins of the Vinesteed to the battlefield enchanting the Human Soldier token.
5. 5Siona triggers, creating a 1/1 Human Soldier creature token.
6. 6Repeat from step 3.

Effects

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