EKko need a huge nerf

Guys wtfk is Ekko? I first time use this champ today in a bot game to test and I dont fcking die in all the game killing 20 champs and 0 Deaths, is very annoying I think then I was on Urf mode, the cost of the abilities mana is dumb and the coldown too. Killing any champ in 123... fk this. Hey I most go before u kill me, wait I forgot something trololol ur slay!!!