Redshift, Rocketeer Chief, and Singing Bell Strike

Prerequisites

• Redshift, Rocketeer Chief on the battlefield
• Singing Bell Strike on the battlefield
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Steps

1. Activate Redshift by tapping it, adding at least seven mana of any color that can only be spent to activate abilities
2. Activate Singing Bell Strike by paying , untapping Redshift
3. Repeat

Results

• Infinite colored mana that can only be spent to activate abilities