Ghave, Guru of Spores, Rosie Cotton of South Lane, and Phyrexian Altar

Prerequisites

• Ghave, Guru of Spores on the battlefield
• Rosie Cotton of South Lane on the battlefield
• Phyrexian Altar on the battlefield
• Ghave has at least two +1/+1 counters on it
• available

Steps

1. Activate Ghave's first ability by paying and removing a +1/+1 counter from it, creating a 1/1 Saproling creature token
2. Rosie triggers, putting a +1/+1 counter on Ghave
3. Activate Phyrexian Altar by sacrificing the Saproling, adding
4. Repeat

Results

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