Reiterate, Seething Song, and Memory Crystal

Prerequisites

• Reiterate in hand
• Seething Song in hand
• Memory Crystal on the battlefield
• available

Steps

1. Cast Seething Song by paying
2. Holding priority, cast Reiterate with buyback by paying , creating a copy of Seething Song
3. Resolve the Seething Song copy, adding
4. Repeat from step 2

Results

• Infinite magecraft triggers
• Infinite red mana
• Infinite storm count