How can you create a combo with Rootha, Mercurial Artist, Twinning Glass, Blinkmoth Infusion?
user
[START OF COMBO]This combo can be formed with Rootha, Mercurial Artist, Twinning Glass, Blinkmoth Infusion

Color identity: UR
Mana cost: {U}{R} plus enough mana to cast Blinkmoth Infusion and pay for commander tax, if applicable
Steps:
  1. Activate all mana-producing artifacts you control by tapping them, adding at least {4}.
  2. Cast Rootha either from your hand or from the command zone by paying {1}{U}{R} plus commander tax, if applicable.
  3. Cast Blinkmoth Infusion.
  4. Holding priority, activate Rootha by paying {2} and returning it from the battlefield to your hand, copying Blinkmoth Infusion.
  5. Activate Twinning Glass by paying {1} and tapping it, casting Rootha without paying its mana cost.
  6. Resolve the copy of Blinkmoth Infusion, untapping all artifacts you control.
  7. Activate all mana-producing artifacts you control by tapping them, adding at least {4}.
  8. Repeat from step 4.[END OF COMBO STEPS]

Result:
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite mana artifacts you control can produce
  - Infinite storm count
  - Infinite untap of artifacts you control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Rootha, Mercurial Artist must be in your hand or in the command zone
  - Twinning Glass must be on the battlefield
  - Blinkmoth Infusion must be in your hand
  - Artifacts you control can tap to produce at least {4}.
[END OF COMBO PREREQUISITES]
assistant