the front side of Ruthless Technomancer
the back of a classic MtG card
the front side of Urza, Lord High Artificer
the back of a classic MtG card
the front side of Cloudstone Curio
the back of a classic MtG card

Color Identity: U, B

Initial Card State

  1.   Ruthless Technomancer in hand or on the battlefield.
  2.  Urza and Cloudstone Curio on the battlefield.

Easy Prerequisites

  1. You control four or more artifacts.

Mana Needed

  1. ({4} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  ({B} magic symbol)   plus up to an additional ({2} magic symbol)  ({U} magic symbol)   available.

Steps

  1. Cast Urza by paying ({2} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  .
  2. When Urza enters the battlefield, it and Cloudstone Curio trigger.
  3. Resolve the Cloudstone Curio trigger, choosing to return Ruthless Technomancer from the battlefield to your hand if its on the battlefield, or nothing otherwise.
  4. Resolve the Urza trigger, creating a 0/0 Construct artifact creature token.
  5. Activate Urza's first ability by tapping the Construct, adding ({U} magic symbol)  .
  6. Cast Ruthless Technomancer by paying ({3} magic symbol)  ({B} magic symbol)  .
  7. When Ruthless Technomancer enters the battlefield, it and Cloudstone Curio trigger.
  8. Resolve the Ruthless Technomancer trigger, causing you to sacrifice the Construct and create a number of Treasure tokens equal to its power.
  9. Holding priority, activate Urza's first ability by tapping a Treasure, adding ({U} magic symbol)  .
  10. Repeat step 9 until you have ({5} magic symbol)  ({U} magic symbol)  ({U} magic symbol)   total available or until you have one untapped Treasure remaining.
  11. Resolve the Cloudstone Curio trigger, returning Urza from the battlefield to your hand.
  12. Activate a Treasure by tapping and sacrificing it, adding ({B} magic symbol)  .
  13. Repeat.

Notes

  1. The additional mana cost may be waived or reduced depending on how many artifacts you control as you start the combo. You can also use artifacts you control to tap them via Urza's first ability, reducing the possible cost down to ({2} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  ({B} magic symbol)  .
  2. Once you have infinite mana, you may use it to activate Urza's ability.

Results

  1. Infinite LTB.
  2. Infinite ETB.
  3. Infinite colored mana.
  4. Infinite sacrifice triggers.
  5. Infinite death triggers.
  6. Infinite storm count.
  7. Exile your library.
  8. Infinite Treasure tokens.
  9. Cast all cards in your library without paying their mana costs.
  10. Return all creature cards from your graveyard to the battlefield.

Metadata

  1. In 5 decks according to EDHREC.
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