Revolutionist, Twinflame, Priest of Urabrask, and Reverberate

Prerequisites

• Revolutionist on the battlefield
• Twinflame in hand
• Priest of Urabrask on the battlefield
• Reverberate in hand
• available

Steps

1. Cast Twinflame with Strive by paying , targeting Revolutionist and Priest of Urabrask
2. Holding priority, cast Reverberate by paying , creating a copy of Twinflame
3. Resolve the Twinflame copy, creating a token copy of Revolutionist and Priest of Urabrask
4. Revolutionist and Priest of Urabrask enters the battlefield triggers
5. Resolve the Revolutionist trigger, returning Reverberate from your graveyard to hand
6. Resolve the Priest of Urabrask trigger, adding
7. Repeat from step 2

Results

• Infinite creature tokens
• Infinite ETB
• Infinite magecraft triggers
• Infinite red mana
• Infinite storm count