Valkyrie's Call + Simulacrum Synthesizer + Extruder

Valkyrie's Call

Simulacrum Synthesizer

Extruder

How it works

1. Cast the Vehicle by paying its mana cost.
2. When the Vehicle enters the battlefield, Simulacrum Synthesizer triggers, creating a 0/0 Construct artifact creature token that gets +1/+1 for each artifact you control.
3. Activate the Vehicle's crew ability by tapping the Construct, causing the Vehicle to become an artifact creature until end of turn.
4. Activate Extruder by sacrificing the Vehicle.
5. When the Vehicle dies, Valkyrie's Call triggers, returning the Vehicle from your graveyard to the battlefield. It will not be an Angel because the Vehicle is no longer a creature and cannot gain creature types.
6. When the Vehicle enters the battlefield, Simulacrum Synthesizer triggers, creating a 0/0 Construct artifact creature token that gets +1/+1 for each artifact you control.
7. Resolve the Extruder ability.
8. Repeat from step 3.

This clever loop transforms a humble Vehicle into an infinite engine by leveraging a continuous cycle of creation, sacrifice, and rebirth. As the Vehicle repeatedly enters the battlefield, Simulacrum Synthesizer churns out an endless army of growing Construct tokens to fuel Extruder's sacrifice cost. Extruder converts those sacrifices into +1/+1 counters while putting the Vehicle into the graveyard, which immediately triggers Valkyrie's Call to pull the Vehicle right back onto the battlefield. Because the Vehicle is not a creature when it re-enters, Valkyrie's Call resets its state without turning it into an Angel, allowing the entire sequence to start over instantly.