Boonweaver Giant + Viscera Seer + False Demise

Boonweaver Giant

Viscera Seer

False Demise

How it works

1. Activate Viscera Seer by sacrificing Boonweaver Giant
2. When Boonweaver Giant dies, False Demise triggers, returning Boonweaver Giant from your graveyard to the battlefield
3. When Boonweaver Giant enters, it triggers, returning False Demise from your graveyard to the battlefield attached to Boonweaver Giant.
4. Resolve the Viscera Seer ability from step 1.
5. Repeat.