Ashling, the Limitless, Catalyst Elemental, and Enduring Renewal

Prerequisites

• Ashling, the Limitless on the battlefield
• Catalyst Elemental on the battlefield
• Enduring Renewal on the battlefield

Steps

1. Activate Catalyst Elemental by sacrificing it, adding
2. When Catalyst Elemental dies, Ashling and Enduring Renewal trigger
3. Resolve the Ashling trigger, creating a token copy of Catalyst Elemental with haste
4. Resolve the Enduring Renewal trigger, returning Catalyst Elemental from your graveyard to the battlefield
5. Activate the Catalyst Elemental token by sacrificing it, adding
6. Cast Catalyst Elemental by paying
7. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite creature tokens with haste
• Infinite death triggers
• Infinite red mana
• Infinite storm count
• Infinite sacrifice triggers