Ghave, Guru of Spores, Cryptic Trilobite, and Cathars' Crusade

Prerequisites

• Ghave, Guru of Spores on the battlefield
• Cryptic Trilobite on the battlefield
• Cathars' Crusade on the battlefield
• Cryptic Trilobite has at least three +1/+1 counters

Steps

1. Activate Cryptic Trilobite's first ability by removing a +1/+1 counter from it, adding
2. Activate Ghave's first ability by paying and removing a +1/+1 counter from Cryptic Trilobite, creating a 1/1 Saproling creature token
3. The Saproling enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control
4. Activate Ghave's second ability by paying and sacrificing the Saproling token, putting a +1/+1 counter on Cryptic Trilobite
5. Activate Cryptic Trilobite's first ability by removing a +1/+1 counter from it, adding
6. Activate Ghave's first ability by paying and removing a +1/+1 counter from any creature you control, creating a 1/1 Saproling creature token
7. Repeat from step 3
8. Once you have infinite +1/+1 counters on Cryptic Trilobite, you may activate Ghave's first ability an infinite number of times to get infinite Saproling tokens

Results

• Infinite +1/+1 counters
• Infinite colorless mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers