Ghave, Guru of Spores, Cryptic Trilobite, Hardened Scales, and Winding Constrictor

Prerequisites

• Ghave, Guru of Spores on the battlefield
• Cryptic Trilobite on the battlefield
• Hardened Scales on the battlefield
• Winding Constrictor 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 that can only be spent to activate abilities
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. Activate Ghave's second ability by paying and sacrificing the Saproling token, putting three +1/+1 counters on Cryptic Trilobite
4. Repeat

Results

• Infinite +1/+1 counters on Cryptic Trilobite
• Infinite colorless mana that can only be spent to activate abilities
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers