Death's Presence, Ashnod's Altar, and Pentavus

Prerequisites

• Death's Presence on the battlefield
• Ashnod's Altar on the battlefield
• Pentavus on the battlefield
• available

Steps

1. Activate Pentavus's first ability by paying and removing a +1/+1 counter from it, creating a 1/1 Pentavite artifact creature token
2. Activate Ashnod's Altar by sacrificing the Pentavite, adding
3. When the Pentavite dies, Death's Presence triggers, putting a +1/+1 counter on Pentavus
4. Repeat

Results

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