Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Threats to Ekko with this build
Ekko, the boy who shattered time... more like shattered YOUR FACE! He's a pretty fun champ, like really-really fun; Teemo-fun. You should play him, only 6300 IP!
This is a guide for dummies (just kidding, but seriously... for noobs).