Battle of Hoover Dam + Triskelavus + Ashnod's Altar
Battle of Hoover Dam
Triskelavus
Ashnod's Altar
Requires
Battle of Hoover Dam must be on the battlefield (has "Legion" chosen).
Triskelavus must be on the battlefield.
Ashnod's Altar must be on the battlefield.
Triskelavus has at least two +1/+1 counters on it.
Mana needed: 
Steps
- Activate Triskelavus by paying and removing a +1/+1 counter from it, creating a 1/1 Triskelavite artifact creature token.
- Activate Ashnod's Altar by sacrificing the Triskelavite, adding .
- When the Triskelavite dies, Battle of Hoover Dam triggers, putting two +1/+1 counters on Triskelavus.
- Repeat.
- Once you have infinite colorless mana and +1/+1 counters, you may forego sacrificing the Triskelavites.
Results
Infinite +1/+1 counters. Infinite colorless mana. Infinite creature tokens. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.
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