Othelm, Sigardian Outcast, Ashnod's Altar, Dross Scorpion, and Biotransference

Prerequisites

• Othelm, Sigardian Outcast on the battlefield
• Ashnod's Altar on the battlefield
• Dross Scorpion on the battlefield
• Biotransference on the battlefield
• Othelm does not have summoning sickness

Steps

1. Activate Ashnod's Altar by sacrificing Dross Scorpion, adding
2. Dross Scorpion triggers, untapping Othelm
3. Activate Othelm by paying and tapping it, returning Dross Scorpion from your graveyard to the battlefield
4. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers