Ekko is very balanced just overtuned.
Pros+ hard hitting ranged harras Massive aoe stun and shield Massive aoe nuke and minor heal Preposition tool High mobiltiy Good crowd control The longer the fight goes he the higher chance he will come out on top. Snowballs hard
Cons- Squishy Has to really commit if he wants to 100-0 you Has to be up in your face to deal the most damage Awareness can render his W useless Q&W are difficult to hit and easy to avoid unless slowed by passive Early game he is no threat but has the tools to survive. Chained crowd control can cause his ghost to catch up to him rendering his only true escape useless. Difficult to play overall Annie lissandra nautilus malzahar exist
Ekko like every assassin to ever exist if he gets fed will single handdly carry and make the game unfun but if he falls behind hes worthless
He needs some tweaks to his passive damage and his q and he would be perfect