Pentavus, Cathars' Crusade, and Earthcraft

Prerequisites

• Pentavus on the battlefield
• Cathars' Crusade on the battlefield
• Earthcraft on the battlefield

Steps

1. Activate a basic land by tapping it, adding
2. Activate Pentavus' first ability by paying and removing a +1/+1 counter from it, creating a 1/1 Pentavite creature token
3. When the Pentavite enters, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control
4. Activate Earthcraft by tapping the Pentavite, untapping a basic land you control
5. Repeat

Results

• Infinite +1/+1 counters on creatures you control
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers