Valkyrie's Call + Simulacrum Synthesizer + Bartolomé del Presidio

Valkyrie's Call

Simulacrum Synthesizer

Bartolomé del Presidio

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 Bartolomé del Presidio 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 Bartolomé del Presidio ability.
8. Repeat from step 3.

This looping engine relies on repeatedly cycling a Vehicle through the graveyard to trigger cascading artifact and creature events. Every time you cast or return the Vehicle, Simulacrum Synthesizer rewards you with a growing Construct token that can be tapped to crew it, turning the Vehicle into an artifact creature ready to be fed. Once crewed, Bartolomé del Presidio acts as the sacrificial outlet that bins the Vehicle, which immediately trips Valkyrie's Call to pull it right back to the battlefield with a fresh +1/+1 counter. Because the Vehicle returns to the battlefield safely, the whole loop resets seamlessly, generating an unstoppable cascade of endless artifact sacrifices, creature deaths, and swelling token armies.