Boonweaver Giant, Ashnod's Altar, and Ferocity of the Hunt

Prerequisites

• Boonweaver Giant on the battlefield
• Ashnod's Altar on the battlefield
• Ferocity of the Hunt on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Boonweaver Giant When Boonweaver Giant dies, Ferocity of the Hunt triggers, returning Boonweaver Giant from your graveyard to the battlefield When Boonweaver Giant enters, it triggers, returning Ferocity of the Hunt from your graveyard to the battlefield attached to Boonweaver Giant
2. Repeat

Results

• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers