Aeronaut's Ring

When a creature with a flying speed wears this ring they can spend a charge dash at supersonic speed, when doing so they provoke no opportunity attacks and if they dash into the space of another creature they ram into them dealing 2d8 force damage and the target has to make a dc 15 strength saving throw or be pushed 10 ft in the opposite direction and knocked prone. (this saving throw is made at disadvantage if the target is also flying.)