Galvanic Juggernaut, Presence of Gond, and Ashnod's Altar

Prerequisites

• Galvanic Juggernaut on the battlefield
• Presence of Gond on the battlefield
• Ashnod's Altar on the battlefield
• Presence of Gond is attached to Galvanic Juggernaut
• Galvanic Juggernaut does not have summoning sickness

Steps

1. Activate Galvanic Juggernaut by tapping it to create 1/1 green Elf Warrior token
2. Activate Ashnod's Altar by sacrificing the token to add
3. Galvanic Juggernaut triggers, untapping
4. Repeat

Results

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