Indigon's high mana cost can make you run out of mana. There are ways to do damage when you don't have mana. Snapshot
(150-180)% increased Energy Shield
(6-10)% increased maximum Mana
Recover (8-10)% of Life when you use a Mana Flask
Non-instant Mana Recovery from Flasks is also Recovered as Life
(50-60)% increased Mana Cost of Skills for each 200 total Mana you have Spent Recently
(20-25)% increased Spell Damage for each 200 total Mana you have Spent Recently, up to 2000%
Where the body's limits begin,the mind's limits end.
A simple tool to price check your items in path of exile by "copy and paste". It is that simple!
Price in Leagues