Priests - Shadow Priests are trivial with COS removing all their life leeches about cheap runescape gold. Premed CS into 5 point expose armor (-1700 but with -300 from serated blades, it is still quite potent), COS once he casts vampiric embrace (and/or devouring plague). You will be surprised how soft shadow priests are without life leech to buy runescape gold. Holy and discipline priests are a little bit more annoying, but basically same thing, -2000 armor, rush them down to buy runescape gold. Try COS as soon as they trinket your stun and you may block the incoming fear. This is still a DPS fight, so do not be shy to vanish CS and get the 10% damage buff if needed to buy runescape gold.
Mages - Fire mages have always been easy but now they are trivial. CS evis then sprint toward them with COS, they are forced to ice block right away and you still have vanish + blind, a very favorable situation. Against water elementals, they only have something like 1300 HP at 60, so as soon as the mage ice blocks, kill the pet! Remember the mage CAN NOT summon his pet before you open on him about cheap runescape gold, or you will simply wait for it to disappear. It has a 3 minute cooldown and only lasts 45 seconds. When he summons the elemental you are already in his face with COS and he has to ice block or die. Against mages that can blink before you evis him, just sap first then CS evis, it is guaranteed because CS itself does not break sap and he can not blink until he eats evis. What used to be an impossible fight is now trivial.