Radagast, Wizard of Wilds, Temur Sabertooth, Phyrexian Altar, Sojourner's Companion, and Tangleroot

Prerequisites

• Radagast, Wizard of Wilds on the battlefield
• Temur Sabertooth on the battlefield
• Phyrexian Altar on the battlefield
• Sojourner's Companion in hand
• Tangleroot on the battlefield
• You control at least seven artifacts

Steps

1. Cast Sojourner's Companion by paying
2. Radagast and Tangleroot trigger
3. Resolve the Tangleroot trigger, adding
4. Resolve the Radagast trigger, creating a 3/3 Beast creature token
5. Activate Phyrexian Altar by sacrificing the Beast, adding
6. Activate Temur Sabertooth by paying , returning Sojourner's Companion from the battlefield to your hand
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count