Reiterate, Ruby Medallion, Runaway Steam-Kin, and Seething Song

Prerequisites

• Reiterate in hand
• Ruby Medallion on the battlefield
• Runaway Steam-Kin on the battlefield
• Seething Song in hand
• availabe

Steps

1. Cast Seething Song
2. In response, cast Reiterate, targeting Seething Song and paying the buyback cost
3. After Reiterate and the copy of Seething Song resolve, cast Reiterate targeting Seething Song and paying the buyback cost
4. Remove three +1+1 counters from Runaway Steam-Kin to produce
5. Repeat the loop from step 3, removing counters from Runaway Steam-Kin for mana every three iterations

Results

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