Noctis, Prince of Lucis, Aetherflux Reservoir, Solemnity, and Lotus Petal

Prerequisites

• Noctis, Prince of Lucis on the battlefield
• Aetherflux Reservoir on the battlefield
• Solemnity on the battlefield
• Lotus Petal in the graveyard

Steps

1. Cast Lotus Petal from your graveyard by paying and 3 life
2. It will not enter with a finality counter due to Solemnity
3. Aetherflux Reservoir triggers, causing you to gain 1 life for each spell you've cast this turn
4. Resolve Lotus Petal, and it will not enter with a finality counter due to Solemnity
5. Activate Lotus Petal by tapping and sacrificing it, adding one mana of any color
6. Repeat

Results

• Infinite colored mana
• Infinite damage
• Infinite lifegain triggers
• Infinite lifegain
• Infinite storm count