Ghave, Guru of Spores + Sengir, the Dark Baron + Phyrexian Altar

Prerequisites

• Sengir has at least one +1/+1 counter on it.

Steps

1. 1Activate Ghave's first ability by paying and removing a +1/+1 counter from Sengir, creating a 1/1 Saproling creature token.
2. 2Activate Phyrexian Altar by sacrificing the Saproling, adding .
3. 3The Saproling dies, triggering Sengir's first ability, putting two +1/+1 counters on Sengir.
4. 4Repeat.

Effects

• Infinite +1/+1 counters on a creature
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers