Birgi, God of Storytelling // Harnfel, Horn of Bounty, Memory Crystal, Sculpting Steel, and Seething Anger

Prerequisites

• Birgi, God of Storytelling // Harnfel, Horn of Bounty on the battlefield
• Memory Crystal on the battlefield
• Sculpting Steel on the battlefield
• Seething Anger in hand
• available

Steps

1. Cast Seething Anger with buyback by paying
2. Birgi triggers, adding
3. Resolve Seething Anger, giving target creature +3/+0 until end of turn and returning Seething Anger to your hand
4. Repeat

Results

• Infinite magecraft triggers
• Infinite storm count
• Infinitely powerful creatures you control until end of turn