Mana surge needs a rework
Xerath's passive-Mana surge grants Mana(wow really) every 12 seconds on next attack,doubled against champions. This passive is too outdated,as Riot specifically stated themselfs that Veigar's passive was poorly designed and was just an excuse for his high mana costs. meanwhile,look at xerath! his mana costs are higher than Snoop Dogg and only keep getting higher,while his passive becomes useless in the late game as zilean's passive,and non efficient once he got a completed mana item. i believe its need a full rework,you can find much more for a magus ascendant with your creativity! (Riot's champion team very unique imagination approaches,as well as music and art,but the balance is complete worthless trash)