How can you create a combo with Teach by Example, Increasing Vengeance?
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[START OF COMBO]This combo can be formed with Teach by Example, Increasing Vengeance

Color identity: UR
Mana cost: {U/R}{U/R}{R}{R}, plus enough mana to cast the additional instant or sorcery
Steps:
  1. Cast any other instant and/or sorcery spell by paying its mana cost.
  2. Holding priority, cast Teach by Example by paying {U/R}{U/R}, copying the next instant or sorcery spell you cast.
  3. Cast Increasing Vengeance by paying {R}{R}, targeting the instant or sorcery spell cast in step 1.
  4. Teach by Example triggers, copying Increasing Vengeance, with the copy targeting the original Increasing Vengeance.
  5. Resolve the copy of Increasing Vengeance, copying Increasing Vengeance, with the copy targeting the original Increasing Vengeance.
  6. Repeat step 5.[END OF COMBO STEPS]

Result:
  - Infinite magecraft triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be in your hand
  - You have an additional instant and/or sorcery card in hand.
[END OF COMBO PREREQUISITES]
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