Oathkeeper, Takeno's Daisho, and Ashnod's Altar

Prerequisites

• Oathkeeper, Takeno's Daisho on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing the nontoken Samurai or changeling, adding
2. When the creature dies, Oathkeeper triggers, returning the creature from your graveyard to the battlefield
3. Activate Oathkeeper's equip ability by paying , attaching it to the creature
4. Repeat

Results

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