Reverberate + Twincast

Mana needed: {U}{U}{R}{R}

UR identity

Commander legal

The 2 combo pieces

How to execute it

  1. Cast any instant or sorcery spell, or wait for an opponent to cast one.
  2. Holding priority, cast Reverberate by paying {R}{R}, targeting that spell.
  3. Cast Twincast by paying {U}{U}, copying Reverberate, with the copy targeting Reverberate.
  4. Resolve the copy of Reverberate, copying the original Reverberate, with the copy targeting the original Reverberate.
  5. Repeat step 4.

What the combo produces