Othelm, Sigardian Outcast, Ashnod's Altar, and Deceiver Exarch

Prerequisites

• Othelm, Sigardian Outcast on the battlefield
• Ashnod's Altar on the battlefield
• Deceiver Exarch on the battlefield
• Othelm does not have summoning sickness

Steps

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

Results

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