Some reasonable buffs to make Gragas great again

As the title says...

is currently sitting at a 46% win rate: http://na.op.gg/champion/gragas/statistics/jungle https://champion.gg/champion/Gragas/Jungle?league=

As is known to be gutted from pro play; he could use some compensation buffs to make him viable in regular play without breaking him in pro play.

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Range increased from 125 to 200

Passive: Happy Hour

Heal increased from 6% to 8%

W: Drunken Rage

2.5 second Channel removed.

Damage reduction increased from 10/12/14/16/18% (4% per 100 AP scaling) to 10/15/20/25/30% (5% per 100 AP scaling)

Maximum health damage increased from 8% to 8/9/10/11/12%

Bonus range decreased from 50 to 15

E: Body Slam

Stun duration increased from 1 second to 1.5 seconds

R: Explosive Cask

AP scaling increased from 70% to 100%

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The nerf to the bonus range on Drunken Rage perhaps will make up for the buffs.