Ghave, Guru of Spores, Metallic Mimic, and Phyrexian Altar

Prerequisites

• Ghave, Guru of Spores on the battlefield
• Metallic Mimic on the battlefield
• Phyrexian Altar on the battlefield
• A creature you control has at least one +1/+1 counter on it
• "Saproling" chosen with Metallic Mimic
• available

Steps

1. Activate Ghave's first ability by paying and removing a +1/+1 counter from a creature you control, creating a 1/1 Saproling creature token
2. The Saproling enters the battlefield with a +1/+1 counter on it due to Metallic Mimic
3. Activate Ghave's first ability by paying and removing a +1/+1 counter from a creature you control
4. Holding priority, activate Phyrexian Altar by sacrificing the Saproling, adding
5. Resolve the Ghave ability, creating a 1/1 Saproling creature token
6. Repeat from step 2

Results

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