Agatha's Soul Cauldron + Cayth, Famed Mechanist Combos

4 known combos featuring both cards in Commander

Infinite ETB Infinite LTB Infinite sacrifice triggers Infinite death triggers Infinite storm count

Combo 1 with Grist, the Hunger Tide

Results: Infinite ETB · Infinite self-mill · Infinite creature tokens
Steps
  1. Activate a creature using Grist's first loyalty ability by putting a loyalty counter on it, causing you to create a 1/1 Insect creature token and mill a card, and then put a loyalty counter on the creature and repeat the process if the card was an Insect.
  2. When the Insect enters, Cayth triggers, putting a +1/+1 counter on the Insect. This causes it to gain Grist's abilities due to Agatha's Soul Cauldron.
  3. Repeat from step 1 using the Insect token instead.

Combo 2 with Yidaro, Wandering Monster + Grinning Ignus

Results: Infinite card draw · Near-infinite ETB · Infinite draw triggers · Near-infinite self-discard triggers · Near-infinite LTB
Show steps
  1. Activate Yidaro's cycling ability by paying {1}{R} and discarding it.
  2. Yidaro triggers, putting it from your graveyard onto the battlefield.
  3. When Yidaro enters the battlefield, Cayth triggers, putting a +1/+1 counter on Yidaro.
  4. Resolve the Yidaro cycling ability, causing you to draw a card.
  5. Activate Yidaro using Grinning Ignus's ability by paying {1} and returning Yidaro from the battlefield to your hand, adding {C}{C}{R}.
  6. Repeat.

Combo 3 with Dargo, the Shipwrecker + Ishai, Ojutai Dragonspeaker + Reckless Barbarian

Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite storm count · Infinite red mana · Infinite commander casts
Show steps
  1. Cast Dargo from the command zone by paying {R}.
  2. When Dargo enters the battlefield, its fabricate ability triggers, putting a +1/+1 counter on it.
  3. Activate Dargo using Reckless Barbarian's ability by sacrificing it, adding {R}{R}.
  4. Choose to return Dargo from your graveyard to the command zone.
  5. Repeat.

Combo 4 with Dargo, the Shipwrecker + Ishai, Ojutai Dragonspeaker + Catalyst Elemental

Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite storm count · Infinite red mana · Infinite commander casts
Show steps
  1. Cast Dargo from the command zone by paying {R}.
  2. When Dargo enters the battlefield, its fabricate ability triggers, putting a +1/+1 counter on it.
  3. Activate Dargo using Catalyst Elemental's ability by sacrificing it, adding {R}{R}.
  4. Choose to return Dargo from your graveyard to the command zone.
  5. Repeat.
📚 Learn more:
Buy Agatha's Soul Cauldron on TCGPlayer Buy on Amazon

As an Amazon Associate and TCGPlayer affiliate I earn from qualifying purchases.

Buy Cayth, Famed Mechanist on TCGPlayer Buy on Amazon

As an Amazon Associate and TCGPlayer affiliate I earn from qualifying purchases.