Valkyrie's Call + Simulacrum Synthesizer + Woe Strider

Valkyrie's Call

Simulacrum Synthesizer

Woe Strider

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 Woe Strider 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 Woe Strider ability.
8. Repeat from step 3.

This clever loop transforms Valkyrie's Call from a simple resurrection enchantment into an endless engine by repeatedly cycling a Vehicle—which conveniently dodges the enchantment's Angel transformation clause the moment it stops being a creature in the graveyard. Every time the Vehicle re-enters the battlefield, Simulacrum Synthesizer seizes the moment to flood your board with ever-growing Construct tokens. Meanwhile, Woe Strider acts as the ultimate sacrifice outlet, not only feeding the loop on demand but granting you infinite scrys to sculpt your draws while it hangs out on the battlefield alongside your growing mechanical army.