CotC Balance Change
Its a rather easy change, but it will prevent CotC from beeing way to strong even on NonTanks! Change the _ x% max Hp_ to x% BONUS HP. This heavily nerfs the early game and on NonTanky champions, but its not completly useless in the early because it has a base shield.
A 4 second big shield is already good enough, so now lets atleast only give tanks the option to benefit from it.
EDIT: Since some dont seem to get what my change would do, let me give you an example: Riven now gets a max of 950 + 25% max HP shield ~= 1500 shield, if 5 people are around. My change changes that too: 950 + 25% Bonus HP = 1000 shield. A full dmg riven gets 500 less on the shield. That seem like a good change to me. But if riven would build more like a bruiser with hp and not just full dmg, she can get a 1500 shield too.
Now a little rant: This post was at 5 and got down to 1. If you feel the need to downvote this, EXPLAIN WHY! Write a comment why this might be bad or maybe completely false, or whatever. I am only trying to improve this game here, downvoting this WITHOUT GIVING ANY REASON, is like hitting yourself with a hammer, or shotting yourself! I am totaly fine with you downvoting this, BUT atleast give me the reason why!