Valkyrie's Call + Simulacrum Synthesizer + Blasting Station Combo

Vehicle with MV >= 3 and a Crew Ability in hand.

All other permanents on the battlefield.

You have enough mana to cast the Vehicle with MV >= 3. The number of artifacts you control is equal to or greater than the Vehicle's crew number minus 2.

Cast the Vehicle by paying its mana cost.

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.

When the Construct enters the battlefield, Blasting Station triggers, untapping Blasting Station.

Activate the Vehicle's crew ability by tapping the Construct, causing the Vehicle to become an artifact creature until end of turn.

Activate Blasting Station by tapping it and sacrificing the Vehicle.

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.

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.

When the Construct enters the battlefield, Blasting Station triggers, untapping Blasting Station.

Resolve the Blasting Station ability from step 5

Repeat from step 4.

Infinite artifact ETB

Infinite artifact LTB

Infinite artifact sacrifice triggers

Infinite creature LTB

Infinite creature ETB

Infinite creature sacrifice triggers

Infinite death triggers

Infinite damage

Infinite tapped creature tokens