Archon of Falling Stars and Woe Strider on the battlefield.
Steps
Activate Woe Strider by sacrificing Archon of Falling Stars.
When Archon of Falling Stars dies, it triggers, returning Animate Dead from your graveyard to the battlefield.
When Animate Dead enters the battlefield, it triggers, returning Archon of Falling Stars from your graveyard to the battlefield, and attaching Animate Dead to it.
Resolve the Woe Strider ability, causing you to scry 1.