Twinflame, Priest of Urabrask, Mnemonic Wall, and Increasing Vengeance

Prerequisites

• Twinflame in hand
• Priest of Urabrask on the battlefield
• Mnemonic Wall on the battlefield
• Increasing Vengeance in hand
• available

Steps

1. Cast Twinflame by paying , targeting any two creatures
2. Holding priority, cast Increasing Vengeance by paying its mana cost, copying Twinflame, with the copy targeting Priest of Urabrask and Mnemonic Wall
3. Resolve the copy of Twinflame, creating a token copy of Priest of Urabrask and Mnemonic Wall with haste
4. When the Priest of Urabrask and Mnemonic Wall tokens enter, they trigger
5. Resolve the Priest of Urabrask trigger, adding
6. Resolve the Mnemonic Wall trigger, returning Increasing Vengeance from your graveyard to your hand
7. Repeat from step 2

Results

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