Can someone tell me which adc is the best now after mid season update
I want to practice a new adc but I don't know which should I use
Pls help me

even 
I want to practice a new adc but I don't know which should I use
Pls help me

even 
contrary to popular belief,
is actually a strong adc. while shes not very difficult to play, unless youre playing against hard dive comps.
shes a good beginner adc with somewhat of a decent skillcap.
as far as other generally beginner friendly adc
is easy to pick up and pretty op right now due to her recent buffs.

Ez and Luc will never fall out of style
Miss fortune and cait
If you are new to adc try sivir. Safest pick against almost anyone in lane and is one of the best late game. Also a great one if you need to first pick.