Boonweaver Giant + Woe Strider + Unhallowed Pact

Boonweaver Giant

Woe Strider

Unhallowed Pact

How it works

1. Activate Woe Strider by sacrificing Boonweaver Giant
2. When Boonweaver Giant dies, Unhallowed Pact triggers, returning Boonweaver Giant from your graveyard to the battlefield
3. When Boonweaver Giant enters, it triggers, returning Unhallowed Pact from your graveyard to the battlefield attached to Boonweaver Giant.
4. Resolve the Woe Strider ability from step 1.
5. Repeat.