Mirana build for Support and Roaming players.
Mirana has one of the best stuns in the game if you can hit with it. Use this to get as much kills earlygame as possible. This build focuses on contributing in teamfights and setting up kills. You want to be super agressive and make sure your team dominates every lane. Everyone is scared for the Mirana Arrow, use this to your advantage and lay pressure on every lane.