Twinflame, Priest of Urabrask, Skullwinder, and Fork

Prerequisites

• Twinflame in hand
• Priest of Urabrask on the battlefield
• Skullwinder on the battlefield
• Fork in hand
• available

Steps

1. Cast Twinflame by paying , targeting any two creatures
2. Holding priority, cast Fork by paying its mana cost, copying Twinflame, with the copy targeting Priest of Urabrask and Skullwinder
3. Resolve the copy of Twinflame, creating a token copy of Priest of Urabrask and Skullwinder with haste
4. When the Priest of Urabrask and Skullwinder tokens enter, they trigger
5. Resolve the Priest of Urabrask trigger, adding
6. Resolve the Skullwinder trigger, returning Fork 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
• Target opponent returns all cards in their graveyard to their hand