Bloodsoaked Champion, Phyrexian Altar, and Pawn of Ulamog

Prerequisites

• Bloodsoaked Champion on the battlefield
• Phyrexian Altar on the battlefield
• Pawn of Ulamog on the battlefield
• You attacked with a creature this turn

Steps

1. Activate Phyrexian Altar by sacrificing Bloodsoaked Champion, adding
2. Pawn of Ulamog triggers, creating a 0/1 Eldrazi Spawn token
3. Activate the Eldrazi Spawn by sacrificing it, adding
4. Activate Bloodsoaked Champion by paying , returning it to the battlefield
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB