Bane is fine for SMN because Shockwave and Ahk Morn are OP. I hope they split SMN and SCH soon. Let SMN keep DoTs and Ruin as it fits their style.

SCH's Ruin line should be replaced with that new unsuspected magic spell that the snake beastmen cast (Spark). Then have Spark upgrade to Broil. Then at 50, instead of Shadow Flare (now SMN only), we get an AoE Broil called "Meltdown" like SCHs Tabula Rasa spell in XI. AOE 200 potency with diminishing damage on additional mobs, additional effect Blind.