About Galio
I think Galio right now was struggling to be a mage or a tank. Instead of scaling his ability (and passive) with ap, I think they should scale it with: the magical damage he receives within the last X seconds (assuming 0MR) + a little bit of ap. This fits his background story of he is built out of stone that can able to absorb some magic. It also gives people a reason to let Galio went toe to toe with enemy champion not just spamming q in a safe range.