Ghave, Guru of Spores, Ygra, Eater of All, and Sam, Loyal Attendant

Prerequisites

• Ghave, Guru of Spores on the battlefield
• Ygra, Eater of All on the battlefield
• Sam, Loyal Attendant on the battlefield

Steps

1. Activate Ghave's first ability by paying due to Sam and Ygra and removing a +1/+1 counter from a creature you control, creating a 1/1 Saproling creature token
2. Activate Ghave's second ability by paying and sacrificing the Saproling
3. When the Saproling dies as a Food due to Ygra, Ygra triggers, putting two +1/+1 counters on it
4. Resolve the Ghave ability, putting a +1/+1 counter on it
5. Repeat

Results

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