Master Yi

You can outtrade him if u play properly , but it's really hard early counter champ for u and so in late game . Master is one of the best counterpicks against Voli.

Jarvan IV

Same as Master of bassics.

Xin Zhao

Also same as master.

Karthus

as a new meta champ in jg karthus is really fucking strong against u in early jg. (but not in late game)

Nocturne

Noc can 1v1 you in early jg and will try to counter jg u, so try not to trade with him in early game. ( low in late)

Udyr

Same as Noc.

Graves

hard in early , but u will dominate in late.

Lee Sin

Same as Graves. (counterjg)

Rengar

Same as Graves (counterjg)

Kayn

Kayn is iritating pick against u and good for counterjgling u , but he will get weak in late game against u.

Evelynn

can be anoying after 6 coz of her passive. U can place pinks near ur buffs.

Shaco

can take one ur buffs in the start coz of his fastcleaning, so care about it.

Kha'Zix

Vi

Jax

Sejuani