Boommobile + Emiel the Blessed + Battered Golem

Boommobile

Emiel the Blessed

Battered Golem

How it works

1. Activate Boommobile's crew ability by tapping Battered Golem, causing Boommobile to become an artifact creature until end of turn.
2. Activate Emiel by paying 3, blinking Boommobile.
3. When Boommobile enters the battlefield, it and Battered Golem trigger.
4. Resolve the Battered Golem trigger, untapping it.
5. Resolve the Boommobile trigger, adding four mana of any color that can only be spent to activate abilities.
6. Repeat