Dire Mimic, Displacer Kitten, Sage of the Beyond, and Serra Paragon

Prerequisites

• Dire Mimic on the battlefield
• Displacer Kitten on the battlefield
• Sage of the Beyond on the battlefield
• Serra Paragon on the battlefield

Steps

1. Activate Dire Mimic's first ability by tapping and sacrificing it, adding one mana of any color
2. Cast Dire Mimic from your graveyard using Serra Paragon's ability by paying
3. Displacer Kitten triggers, blinking Serra Paragon
4. Activate Dire Mimic's first ability by tapping and sacrificing it, adding one mana of any color
5. Dire Mimic leaves the battlefield, triggering its ability
6. In response, repeat from step 2
7. Once you have infinite mana, resolve all Dire Mimic abilities, causing you to exile it from your graveyard if it's in your graveyard and gain infinite life

Results

• Infinite colored mana
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers
• Infinite LTB
• Infinite storm count