Mendicant Core, Guidelight + Myr Retriever Combos

2 known combos featuring both cards in Commander

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

Combo 1 with Krark-Clan Ironworks

Also requires: Krark-Clan Ironworks Krark-Clan Ironworks
Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite colorless mana · Infinite storm count
Steps
  1. Cast Myr Retriever by paying {2}.
  2. Mendicant Core triggers, causing you to pay {1} to copy the Myr Retriever spell, creating a token copy of it.
  3. Activate Krark-Clan Ironworks by sacrificing the nontoken Myr Retriever, adding {C}{C}.
  4. When Myr Retriever dies, it triggers, returning another artifact from your graveyard to your hand.
  5. Activate Krark-Clan Ironworks by sacrificing the token Myr Retriever, adding {C}{C}.
  6. When the token Myr Retriever dies, it triggers, returning the nontoken Myr Retriever from your graveyard to your hand.
  7. Repeat.

Combo 2 with Ashnod's Altar

Also requires: Ashnod's Altar Ashnod's Altar
Results: Infinite colorless mana · Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite storm count
Show steps
  1. Cast Myr Retriever by paying {2}.
  2. Mendicant Core triggers, causing you to pay {1} to copy the Myr Retriever spell, creating a token copy of it.
  3. Activate Ashnod's Altar by sacrificing the nontoken Myr Retriever, adding {C}{C}.
  4. When Myr Retriever dies, it triggers, returning another artifact from your graveyard to your hand.
  5. Activate Ashnod's Altar by sacrificing the token Myr Retriever, adding {C}{C}.
  6. When the token Myr Retriever dies, it triggers, returning the nontoken Myr Retriever from your graveyard to your hand.
  7. Repeat.
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