[Ray88]

Exhaust is the most op summoner for a support (early AND late game), negating 40% dmg AND reducing attack speed and movement speed by 30%. Exhausting the enemy ad assasin (yasuo, zed etc) or adc late game = gg. Like omega said you shouldn't be proxing a wave as a TANKY support as your main goal is to "support" your adc at all time; even if it's leashing jungle camps. You'll also be taking away necessary gold from mid and adc, not to mention since you're tanky you wont be clearing the wave fast to begin with.
Also corki isnt shit, he has spells that do both ap and ad dmg that scale well into late game plus he has one of the longest jump range of all the adc.

beasty pls stfu and l2p before you talk, we've already had enough of your wood tips and mechanics tyvm :^D