Triskelavus, Cauldron of Souls, Clock of Omens, and Krark-Clan Ironworks

Prerequisites

• Triskelavus on the battlefield
• Cauldron of Souls on the battlefield
• Clock of Omens on the battlefield
• Krark-Clan Ironworks on the battlefield
• Triskelavus does not have a -1/-1 counter on it

Steps

1. Activate Cauldron of Souls by tapping it, giving Triskelavus persist until end of turn
2. Activate Krark-Clan Ironworks by sacrificing Triskelavus, adding
3. When Triskelavus dies, its persist ability triggers, returning it from your graveyard to the battlefield with two +1/+1 counters on it
4. Activate Triskelavus' first ability twice by paying and removing two +1/+1 counters from it, creating two 1/1 Triskelavite artifact creature tokens
5. Activate Clock of Omens by tapping Triskelavus and a Triskelavite, untapping Cauldron of Souls
6. Repeat
7. Once you have infinite Triskelavite tokens, you may sacrifice them to deal infinite damage to any target(s)

Results

• Infinite colorless mana
• Infinite creature tokens
• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mana artifacts you control can produce
• Infinite sacrifice triggers
• Infinite untap of artifacts you control