Boonweaver Giant + Altar of Dementia + Abduction

Boonweaver Giant

Altar of Dementia

Abduction

How it works

1. Activate Altar of Dementia by sacrificing Boonweaver Giant
2. When Boonweaver Giant dies, Abduction triggers, returning Boonweaver Giant from your graveyard to the battlefield
3. When Boonweaver Giant enters, it triggers, returning Abduction from your graveyard to the battlefield attached to Boonweaver Giant.
4. Resolve the Altar of Dementia ability from step 1.
5. Repeat.