Ghave, Guru of Spores, Sigil Captain, and Phyrexian Altar

Prerequisites

• Ghave, Guru of Spores on the battlefield
• Sigil Captain on the battlefield
• Phyrexian Altar on the battlefield
• You control a creature with a +1/+1 counter on it
• 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. Sigil Captain triggers, putting two +1/+1 counters on that Saproling
3. 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
4. Sigil Captain triggers, putting two +1/+1 counters on that Saproling
5. Activate Phyrexian Altar by sacrificing a Saproling token, adding
6. Repeat from step 3

Results

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