User blog comment:Atmey/Mona the First Martyr/@comment-7713180-20130408154703/@comment-3529242-20130408172141

Her heal is for sustain rather than a save someone in a fight, along with her passive she can heal or deny the regen for about 30~70 health if she uses E, and the spammable factor of E spamming makes it like Soraka's MR shred, as long as you are in range you get debuffs/buffs.

Yeah I forgot to adjust her MS, and yeah the regen and costs are not perfect, her low flat costs are designed to make her feel "manaless" and utilize the passive for extra AP, and the nuke on Q too.