Galio is like... a complex joke.
That continues to fly over your head

That continues to fly over your head

remember when everyone started playing him when his ult couldnt be reduced by tenacity.
well if everyone stops playing a champion they usually get buffs, or riot crumbs
His mana costs area joke. That's about it.
except galio is a viable champion in ap heavy comps, has great utility as a midlaner, and as a mr tank. Play him before saying that they are the dumbest champ ever.
And to this day still league players never saw that this was a joke...
And it completely flew over their heads ~tehehe
the main problem with galio is that its not a 3sec cc, its a 3second taunt, of which all those bruisers and adcs will be punishing you, so he either has to build somewhat tanky and be full health to use the ult in the first place, or he kills himself and your team loses one of your 'supposed" ap mage damage dealers.
that and he has no way to get in to use the ultimate in the first place without a flash combo.