Adarkar Valkyrie + Thornbite Staff + Woe Strider

Adarkar Valkyrie

Thornbite Staff

Woe Strider

How it works

1. Activate Adarkar Valkyrie by tapping it, targeting another nontoken creature you control.
2. Activate Woe Strider by sacrificing the creature targeted in step 1.
3. When the creature dies, Adarkar Valkyrie triggers twice.
4. Resolve the first trigger, untapping Adarkar Valkyrie.
5. Resolve the second trigger, returning the sacrificed creature from your graveyard to the battlefield.
6. Resolve the Woe Strider ability, causing you to scry 1.
7. Repeat.

This clever loop hinges on Adarkar Valkyrie placing a delayed trigger on a creature, which is then immediately fulfilled when Woe Strider sacrifices that creature to the graveyard. While the step-by-step sequence traces the Valkyrie's delayed triggers, Thornbite Staff is the secret engine that holds the whole mechanism together: its triggered ability watches everything die and untaps the Valkyrie, letting you repeat the sacrifice and return loop infinitely.