So, while it doesn't happen all that often, what do you guys do, when you have to siege/do extended teamfights, while not having blue nor ER? Manaflow solves mana issues for laning and midgame, but when abilities are being spammed, manabar's still melting.

Also, if I spam abilities for a baron rush, for example, then I'll pretty much always be OOM afterwards.

PoM does nothing if no one's dying (Overheal is also super good for lane), and I'm seldom getting random levelups during lategame teamfights.

To be honest, mana is actually rarely an issue, but when it is (like in those scenarios), it is very annoying.

(Am talking about lane Kai'Sa, so no jgl item to regen mana either).