The Sonic Rainboom is a unique magical stunt which can only be performed by Rainbow Dash. It appears in the following places in the story:

  • One during the fight with Discord.[1]
  • One at the climax of the Silvadel arc, as Rainbow is diving downwards through a swarm of dragons back to the Sanctuary.
  • Several over a warzone during the climax of Odrsjot[2]
  • One during a race in Durandana.
  • One during a race at Ether Point.
  • One while chasing the runaway Noble Jury on its final flight over Val Roa.
  1. Eljunbyro, "My Harmony"
  2. Odrsjot, "Of Harmony and Majesty"