Initial Card State
- All permanents on the battlefield (The Reaper without a +1/+1 counter on it).
Steps
- Activate Krark-Clan Ironworks by sacrificing The Reaper.
- When The Reaper dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
- When The Reaper enters the battlefield, it triggers, putting a -1/-1 counter on it.
- Resolve the Krark-Clan Ironworks ability.
- Repeat.
Results
- Infinite ETB.
- Infinite LTB.
- Infinite colorless mana.
- Infinite death triggers.
- Infinite sacrifice triggers.
- Infinite -1/-1 counters.
- Infinite recursion of non-Human creatures you control.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).