Talk:Manamune/@comment-79.107.172.75-20121212085306/@comment-1679053-20130104041743

The active does drain your mana heavily, yes...but with a high enough mana pool, you can do some serious damage with it.

Consider this: The item alone gives you 750 mana. With the active toggled on, you would drain 22.5 mana to deal and extra 45 magic damage, decreasing with each attack. However with a high enough mana pool (2000+) you could do well over 130 damage with the first hit or two, plus the more you use it, the less it drains.

Grabbing the blue buff or a chalice also helps keep your mana high.