If it does not have a mana cost that would be pretty intense and i would probably change my passives and runes a bit.
10/03/2011 07:39 AMPosted by DrVikIn beta, right now, no mana is written on the tooltip. So it seems it doesn't cost any mana.
10/03/2011 11:51 AMPosted by TrangoulI'd assume that they're going to work it out so that if you have 3+ spirit abilities, rush essence becomes more beneficial than other mana-restorative passives. Any speculation as to how is merely that - speculation.
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