Intruder Alarm + Su-Chi Combos

3 known combos featuring both cards in Commander

Infinite colorless mana Infinite death triggers Infinite ETB Infinite LTB Infinite sacrifice triggers

Combo 1 with Bjorna, Nightfall Alchemist + Othelm, Sigardian Outcast

Also requires: Bjorna, Nightfall Alchemist Bjorna, Nightfall Alchemist Othelm, Sigardian Outcast Othelm, Sigardian Outcast
Results: Infinite colorless mana · Infinite damage to creatures · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite mana creatures you control can produce · Infinite sacrifice triggers · Infinite untap of creatures
Steps
  1. Activate Bjorna by tapping it and sacrificing Su-Chi, targeting any creature.
  2. Su-Chi dies, adding {C}{C}{C}{C}.
  3. Activate Othelm by paying {2} and tapping it, returning Su-Chi from your graveyard to the battlefield.
  4. Su-Chi enters the battlefield, triggering Intruder Alarm, untapping all creatures.
  5. Repeat an arbitrarily large number of times.
  6. Resolve all Bjorna abilities, dealing infinite damage to any creature(s).

Combo 2 with Drafna, Founder of Lat-Nam + Ashnod's Altar

Also requires: Drafna, Founder of Lat-Nam Drafna, Founder of Lat-Nam Ashnod's Altar Ashnod's Altar
Results: Infinite colorless mana · Infinite creature tokens · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers
Show steps
  1. Cast Su-Chi by paying {4}.
  2. Holding priority, activate Drafna's second ability by paying {3} and tapping it, copying the Su-Chi spell.
  3. Resolve the copy of the Su-Chi spell, creating a token copy of Su-Chi.
  4. The token Su-Chi enters the battlefield, triggering Intruder Alarm, untapping all creatures.
  5. Activate Ashnod's Altar by sacrificing the Su-Chi token, adding {C}{C}.
  6. The token Su-Chi dies, adding {C}{C}{C}{C}.
  7. Repeat from step 2.
  8. Once you have infinite mana, you may forego sacrificing the Su-Chi tokens.

Combo 3 with Drafna, Founder of Lat-Nam + Krark-Clan Ironworks

Also requires: Drafna, Founder of Lat-Nam Drafna, Founder of Lat-Nam Krark-Clan Ironworks Krark-Clan Ironworks
Results: Infinite colorless mana · Infinite creature tokens · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers
Show steps
  1. Cast Su-Chi by paying {4}.
  2. Holding priority, activate Drafna's second ability by paying {3} and tapping it, copying the Su-Chi spell.
  3. Resolve the copy of the Su-Chi spell, creating a token copy of Su-Chi.
  4. The token Su-Chi enters the battlefield, triggering Intruder Alarm, untapping all creatures.
  5. Activate Krark-Clan Ironworks by sacrificing the Su-Chi token, adding {C}{C}.
  6. The token Su-Chi dies, adding {C}{C}{C}{C}.
  7. Repeat from step 2.
  8. Once you have infinite mana, you may forego sacrificing the Su-Chi tokens.
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