Corki feels bad to play with the Crit Changes and is badly in need of buffs (A Corki Player)

As the title says...

is currently sitting at a 47%-49% win rate: http://na.op.gg/champion/corki/statistics/mid http://champion.gg/champion/Corki/Middle?league=

As someone who plays ; he feels awful to play and is badly in need of compensation buffs due to his lack of damage. He synergies poorly with all the items

Q: Phosphorus Bomb

New Effect Units killed by Phosphorus Bomb restores 2% of 's maximum mana

W: Valkyrie

Cooldown decreased from 20/19/18/17/16 to 16 seconds all ranks

E: Gatling Gun

New Effect Can now critically strike

R: Missile Barrage

New Effect Now deals 150% bonus damage to minions; the big one deals 250% bonus damage to minions