How can you create a combo with Black Market, Strionic Resonator, Clever Conjurer, Umbral Mantle?
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[START OF COMBO]This combo can be formed with Black Market, Strionic Resonator, Clever Conjurer, Umbral Mantle

Color identity: UB
Mana cost: {2}
Steps:
  1. At the beginning of your precombat main phase, Black Market's second ability triggers.
  2. Holding priority, activate Strionic Resonator by paying {2} and tapping it, copying Black Market's trigger.
  3. Resolve the copy of Black Market's trigger, adding at least six {B}.
  4. Activate Clever Conjurer by tapping it, untapping Lithoform Engine.
  5. Activate Clever Conjurer by paying {3} and untapping it, giving it +2/+2 until end of turn.
  6. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite black mana
  - Infinitely large Clever Conjurer until end of turn
  - Infinite mana artifacts you control can produce
  - Infinite mana creatures you control can produce
  - Infinite untap of artifacts you control
  - Infinite untap of creatures you control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Black Market has at least six charge counters on it.
  - Umbral Mantle attached to Clever Conjurer.
  - Clever Conjurer does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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