Chrome Dome + Boommobile + Yarok, the Desecrated

Chrome Dome

Boommobile

Yarok, the Desecrated

How it works

1. Activate Chrome Dome by paying 5, creating a token copy of Boommobile.
2. When the Boommobile token enters the battlefield, it triggers twice, adding 8 that can only be spent to activate abilities.
3. Repeat.

This clever loop centers around Chrome Dome and its ability to copy target artifacts, turning a large investment of mana into an escalating chain of value. When you target Boommobile with this copying process, Boommobile's entry ability normally yields four mana, but Yarok, the Desecrated doubles every single permanent entry trigger, turning that single copy into a massive injection of eight restricted mana. With Yarok, the Desecrated amplifying the double-trigger engine, you generate a surplus of mana that far exceeds the initial activation cost, letting you repeat the process to build an unbounded army of copies and infinite damage.