the whole increases mana regen by 1% for every 1% missing is kinda confusing to me so I havnt used this item much

does this mean that it'll increase your total mana regen or only your mana regen from this item?

like since the item only has 7.5 mp5 the most you can get out of this is only 15 mp5? and thats only if your totally out of mana?

or say if you have this and pholospher stone (I know I spelt that wrong) and have a combined 17.5 mp5 and when your out of mana you get 35 mp5?

or am I getting 1% mana regen of my total mana per every 1% mana loss?

so if thats the case then, this item is only good if you get another mana regen item as well? otherwise just 7.5 becoming 15 isnt really much

so which heros would use this? Im thinking casters with spamable abilities that would get the staff that gives you 2% of your mana into ability power?

Well it works off your innate regen as well. It's a good item for anyone who needs mana.

I've been wondering this as well. The way it looks like is like your saying; you need to get another mp5 item for it to work. I'd like a Riot staff to answer this; unless someone has tested this.

Kishar21

Go test it with amumu get a chalice and leave your activated AOE on and watch your regen. It's good