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Do you classify everything as being either carrying or feeding?
Support roles aren't focussed on last hitting anyway. The numbers seem fine, especially considering that either team's probable ADC (Twitch and Ezreal) had pretty high KDAs and since they lane with support, it's an indication that...
I saw a Gyarados with Flamethrower. How much did it do to my Ferrothorn in the rain?
Gyarados used Flamethrower!
It's super effective! The foe's Ferrothorn lost 20.5% of its health!