Requires

Nim Deathmantle must be on the battlefield. Krark-Clan Ironworks must be on the battlefield. Accomplished Automaton must be on the battlefield. Mana needed:

Steps

1. Activate Krark-Clan Ironworks by sacrificing Accomplished Automaton, adding .
2. When Accomplished Automaton dies, Nim Deathmantle triggers, causing you to pay to return Accomplished Automaton from your graveyard to the battlefield, and attach Nim Deathmantle to it.
3. When Accomplished Automaton enters the battlefield, its fabricate ability triggers, creating a 1/1 Servo artifact creature token.
4. Activate Krark-Clan Ironworks by sacrificing the Servo, adding .
5. Repeat.

Results