Ok, I was planning on putting this suggestion in the comments on the Meditation page, but I doubted anyone would have seen it. Just in case you're not sure of what I'm talking about, I am referring to the mastery: Meditation, which regenerates a % of your missing mana every 5 seconds.
Proposed Meditation effect
Restores % of missing mana (same as current) OR restores a flat amount of mana every 5 seconds, based on which amount of mana restored would be HIGHER.
This proposed change is intended for champions with very low mana pools, who are not likely to benefit greatly from the % missing mana restoration, compared to other champions. Tell me what you think.