Grovetender Druids + Xenograft + Phyrexian Altar

Prerequisites

• "Ally" chosen with Xenograft.

Steps

1. 1Cast Grovetender Druids by paying .
2. 2When Grovetender Druids enters the battlefield, it triggers, causing you to pay to create a 1/1 Plant creature token.
3. 3When the Plant enters the battlefield as an Ally due to Xenograft, Grovetender Druids triggers.
4. 4Holding priority, activate Phyrexian Altar by sacrificing the Plant, adding .
5. 5Resolve the Grovetender Druids trigger, causing you to pay to create a 1/1 Plant creature token.
6. 6Repeat from step 3.

Effects

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