I feel like Galio would be easier to balance if you balanced him arround what he is a Battle Mage...
I feel like you put too much into his Q and R for abslutely no reason making the balancing really hard...
Now your pretty much just trying to make Galio unable to use those ability at all.. 8 seconds lowest cool down on a battle mage litterally makes no sense when you see swain at 2 seconds cd Q rumble pretty much keeps his flame spitter permanently up until he overcharge vlad both nuke spells are at 3 seconds cd later.
130 mana cost is like a prank....
Passive is litteraly shit tier because it hurts u almost the entire early game and doesnt scale that well for how much bad it does early game for u..
Forces you to push on a champion with extremely high cooldowns early game you just die if u get ganked
This Pbe patch your increasing galio R by 40 seconds at rank 3 nice seems to be too problematic in competitive because who would of trought instant damage reduction + aoe dmg from a semi global ability would cause that.
what i suggest is that you just remove the damage reduction u give on the person u ult.
Galio should protect his allies once he arrives not randomly when he clicks R on them hes not shen...
now it leaves rooms to buff other part of his kits that makes him pretty garbage in solo Q.
I feel like Q should have less scaling dmg but lower cd and higher scaling on passive
E travel speed should be increased a little bit because it feels like hitting a max range E is nearly impossible even on a immobile target leaving galio to have to rely on Q too much to deal his damage..
Im just trying to give suggestion i kinda just want a viable solo Q champion in the mid lane since i dont think
getting reworked anytime soon so might aswell try and help balancing him