Clockspinning + Witch-Maw Nephilim Combos

2 known combos featuring both cards in Commander

Infinite +1/+1 counters on certain creatures Infinite +1/+1 counters on a creature Infinite death triggers Infinite ETB Infinite LTB

Combo 1 with Animation Module + Pitiless Plunderer + Krark-Clan Ironworks

Also requires: Animation Module Animation Module Pitiless Plunderer Pitiless Plunderer Krark-Clan Ironworks Krark-Clan Ironworks
Results: Infinite +1/+1 counters on certain creatures · Infinite +1/+1 counters on a creature · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite magecraft triggers · Infinite sacrifice triggers · Infinite storm count
Steps
  1. Cast Clockspinning with buyback by paying {3}{U}, targeting Witch-Maw Nephilim.
  2. Witch-Maw Nephilim's first ability triggers, putting two +1/+1 counters on it.
  3. Animation Module triggers, causing you to pay {1} to create a 1/1 Servo artifact creature token.
  4. Activate Krark-Clan Ironworks by sacrificing the Servo, adding {C}{C}.
  5. When the Servo dies, Pitiless Plunderer triggers, creating a Treasure artifact token.
  6. Resolve Clockspinning, putting a +1/+1 counter on Witch-Maw Nephilim and returning Clockspinning to your hand.
  7. Repeat steps 3 through 5 one additional time.
  8. Activate the Treasures by tapping and sacrificing them, adding {1}{U}.
  9. Repeat.
  10. You may also target any other creature you control that has a +1/+1 counter on it using Clockspinning.

Combo 2 with Animation Module + Pitiless Plunderer + Ashnod's Altar

Also requires: Animation Module Animation Module Pitiless Plunderer Pitiless Plunderer Ashnod's Altar Ashnod's Altar
Results: Infinite +1/+1 counters on certain creatures · Infinite +1/+1 counters on a creature · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite magecraft triggers · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Cast Clockspinning with buyback by paying {3}{U}, targeting Witch-Maw Nephilim.
  2. Witch-Maw Nephilim's first ability triggers, putting two +1/+1 counters on it.
  3. Animation Module triggers, causing you to pay {1} to create a 1/1 Servo artifact creature token.
  4. Activate Ashnod's Altar by sacrificing the Servo, adding {C}{C}.
  5. When the Servo dies, Pitiless Plunderer triggers, creating a Treasure artifact token.
  6. Resolve Clockspinning, putting a +1/+1 counter on Witch-Maw Nephilim and returning Clockspinning to your hand.
  7. Repeat steps 3 through 5 one additional time.
  8. Activate the Treasures by tapping and sacrificing them, adding {1}{U}.
  9. Repeat.
  10. You may also target any other creature you control that has a +1/+1 counter on it using Clockspinning.
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