Cathars' Crusade + Krark-Clan Ironworks Combos

4 known combos featuring both cards in Commander

Infinite death triggers Infinite ETB Infinite LTB Infinite sacrifice triggers Infinite +1/+1 counters on creatures you control

Combo 1 with Animation Module

Also requires: Animation Module Animation Module
Results: Infinite colorless mana · Infinite creature tokens · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite +1/+1 counters on creatures you control
Steps
  1. Put a +1/+1 counter on any creature you control.
  2. Animation Module triggers, causing you to pay {1} to create a 1/1 Servo artifact creature token.
  3. The Servo enters the battlefield, triggering Cathars' Crusade.
  4. Holding priority, activate Krark-Clan Ironworks by sacrificing the Servo, adding {C}{C}.
  5. Resolve the Cathars' Crusade trigger, putting a +1/+1 on each creature you control.
  6. Animation Module triggers for each +1/+1 counter placed this way.
  7. Resolve all but one Animation Module trigger, choosing not to pay.
  8. Resolve the final Animation Module trigger, causing you to pay {1} to create a 1/1 Servo artifact creature token.
  9. Repeat from step 3.

Combo 2 with Triskelavus

Also requires: Triskelavus Triskelavus
Results: Infinite colorless mana · Infinite creature tokens · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite +1/+1 counters on creatures you control
Show steps
  1. Activate Triskelavus' first ability by paying {1} and removing a +1/+1 counter from it, creating a 1/1 Triskelvaite creature token.
  2. The Triskelvaite enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control.
  3. Activate Krark-Clan Ironworks by sacrificing the Triskelvaite, adding {C}{C}.
  4. Repeat.

Combo 3 with Pentavus

Also requires: Pentavus Pentavus
Results: Infinite colorless mana · Infinite creature tokens · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite +1/+1 counters on creatures you control
Show steps
  1. Activate Pentavus' first ability by paying {1} and removing a +1/+1 counter from it, creating a 1/1 Pentavite creature token.
  2. The Pentavite enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control.
  3. Activate Krark-Clan Ironworks by sacrificing the Pentavite, adding {C}{C}.
  4. Repeat.

Combo 4 with Mister Gutsy + Nim Deathmantle

Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite +1/+1 counters on creatures you control
Show steps
  1. Activate Krark-Clan Ironworks by sacrificing Mister Gutsy, adding {C}{C}.
  2. When Mister Gutsy dies, its second ability and Nim Deathmantle trigger.
  3. Resolve the Mister Gutsy trigger, creating a number of Junk tokens equal to the number of +1/+1 counters that were on it.
  4. If you created a Junk token, activate Krark-Clan Ironworks by sacrificing a Junk, adding {C}{C}.
  5. Resolve the Nim Deathmantle trigger, causing you to pay {4} to return Mister Gutsy from your graveyard to the battlefield, and attaching Nim Deathmantle to it.
  6. When Mister Gutsy enters the battlefield, Cathars' Crusade trigger, putting a +1/+1 counter on each creature you control.
  7. Repeat.
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