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

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 Altar of Dementia by sacrificing the creature enchanted by Reins of the Vinesteed.
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. 6Resolve the Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power.
7. 7Repeat from step 3.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite mill
• Infinite self-mill