Arms Race + Meticulous Excavation + Zirda, the Dawnwaker + Boommobile

Prerequisites

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Steps

1. 1Activate Arms Race by paying , putting Boommobile from your hand onto the battlefield.
2. 2When Boommobile enters the battlefield, it triggers, adding or that can only be spent to activate abilities.
3. 3Activate Meticulous Excavation by paying , returning Boommobile from the battlefield to your hand.
4. 4Repeat.

Effects

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