Mid. Astral Imprisonment banishes an enemy for a few seconds and you steal some of their mana pool. Use this a lot, especially when it would allow you to deny creeps from them. You can also use it on yourself or your allies to dodge spells. Arcane Orb deals damage based on your mana pool, put it on autocast after leveling Essence Flux at 4 because it gives you constant free mana. Sanity's Eclipse deals damage based on the difference between your mana and the target's, only use it on targets with low mana. It can hit enemies within Astral Imprisonment. You are fragile so stay at range.