Dawn Evangel, Smoke Shroud, Changeling Outcast, Edgewalker, and Ashnod's Altar

Prerequisites

• Dawn Evangel on the battlefield
• Smoke Shroud on the battlefield
• Changeling Outcast on the battlefield
• Edgewalker on the battlefield
• Ashnod's Altar on the battlefield
• Smoke Shroud attached to Changeling Outcast

Steps

1. Activate Ashnod's Altar by sacrificing Changeling Outcast, adding
2. Dawn Evangel triggers, returning Changeling Outcast from your graveyard to your hand
3. Cast Changeling Outcast for
4. Smoke Shroud triggers, returning from your graveyard to the battlefield attached to Changeling Outcast
5. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count