Karma should get the Patch 5.10 Lulu Treatment (Increased Mana Regen Early)
Right now, Karma is facing the same problems Lulu did before her patch 5.10 buffs. She is a slightly subpar support while finding greater success in solo lanes. She runs oom too fast early game; even if she hits the majority of her Q's, she will be oom before she has forced her opponents to back.
The mana buffs to Lulu solidified her support role and had little effect on her solo laning (which has the gold to access more mana regen anyway).
Karma is a very similar champion to Lulu - I have played hundreds of games with both. Both have a linear skillshot nuke that slows on Q and a shield on E. Both play the support role as a poking champion with decent peeling ability.
Right now, I feel that Karma runs oom early game a bit too fast, just like I did with Lulu (before patch 5.10). While Karma's Q does cost 10 mana less than Lulu's with each rank, Karma has lower CDs than Lulu.
Honestly, Karma support would be in such a better place if she got the same exact change Lulu got:
Base Mana Regeneration 6.0 --> 8.5
Mana Regeneration per level 0.8 --> 0.6
completed is underwhelming so this needs an update. When I saw those [ridiculous] gp/10 buffs on it earlier [which got pulled as a mistake] I half believed it because of the current state of the support meta.
and do very well with it. While I do agree the item could be buffed, or supports could have better access to AP/mana regen, I do think that Karma could use this small buff. The reason I suggest this in particular is she suffers the same problems Lulu had, she's so similar to Lulu, and Lulu was helped a lot by her mana regen buff.