Intruder Alarm + Su-Chi Cave Guard 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 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 death triggers · Infinite ETB · Infinite LTB · Infinite mana creatures you control can produce · Infinite sacrifice triggers · Infinite untap of creatures
Steps
  1. Cast Su-Chi Cave Guard by paying {8}.
  2. Holding priority, activate Drafna's second ability by paying {3} and tapping it, copying the Su-Chi Cave Guard spell.
  3. Resolve the copy of the Su-Chi Cave Guard spell.
  4. When the Su-Chi Cave Guard token enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  5. Activate Krark-Clan Ironworks by sacrificing the Su-Chi Cave Guard token, adding {C}{C}.
  6. When the token Su-Chi Cave Guard dies, it triggers, adding eight {C}.
  7. Repeat from step 2.

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 death triggers · Infinite ETB · Infinite LTB · Infinite mana creatures you control can produce · Infinite sacrifice triggers · Infinite untap of creatures
Show steps
  1. Cast Su-Chi Cave Guard by paying {8}.
  2. Holding priority, activate Drafna's second ability by paying {3} and tapping it, copying the Su-Chi Cave Guard spell.
  3. Resolve the copy of the Su-Chi Cave Guard spell.
  4. When the Su-Chi Cave Guard token enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  5. Activate Ashnod's Altar by sacrificing the Su-Chi Cave Guard token, adding {C}{C}.
  6. When the token Su-Chi Cave Guard dies, it triggers, adding eight {C}.
  7. Repeat from step 2.

Combo 3 with Drafna, Founder of Lat-Nam + Altar of Dementia

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