Custodi Soulbinders, Cathars' Crusade, Earthcraft, and Ashnod's Altar

Prerequisites

• Custodi Soulbinders on the battlefield
• Cathars' Crusade on the battlefield
• Earthcraft on the battlefield
• Ashnod's Altar on the battlefield
• Custodi Soulbinders has at least one +1/+1 counter
• You control a basic Plains
• available

Steps

1. Activate a basic Plains by tapping it, adding
2. Activate Custodi Soulbinders by paying and removing a +1/+1 counter from it, creating a 1/1 Spirit creature token
3. The Spirit enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control
4. Activate Earthcraft by tapping the Spirit token, untapping a basic Plains
5. Activate Ashnod's Altar by sacrificing the Spirit, adding
6. Repeat

Results

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