I have a lvl68 warlock/bard, and it kicks ***, u just gotta know how to use it.
If you have SBot, don't get a good shield since sbot can't switch back the shield, it will be useless... (soo, if u use sbot, try getting better weapon or gears, insteas of a shield).
Then, where to bot... This is actually an easy question. If you have good gears and a good weapon, u will most likely 2hit a mob lvl63 (edimnu, for example). Soo, a good tactic would be: Blood Flower -> Vampire Touch -> Normal Attack.
Blood flower: (i think that's the name of the skill, i can't remember, because i know there are 2 of them... In case im wrong, the skill im talking about it the single attack)
This skill will do at least 3.5k in any mob ur lvl, and since mobs ur lvl should have something like 7/8k hp, u will drop their health do half. Now, the mob health is down... what about urs? After u use that attack, the mob will follow u of course, and if the previous mob hitted u, it may be enough for this one to kill u, soo... Vampire Touch will give u a needed health boost, and best thing is, it gives u the boost right when u need it, before the mob reaches u. Problem is, it doesn't make enough damage to kill it, altought he is already halved. Soo, to avoid using more MP (warlocks are MP spounges...), just use the fast and reliable Normal Attack!
This should kill it for good ^^
Of course, with all of this, u gotta use Noise, and optionally, Moving March, to move faster (Both from the Bard Tree)
For Giants/Champs, use the skills i mentioned above, but right after normal attack, use 1 debuff (I do mean just 1, because the bot will keep using it, and it wastes time and ur precious health... Try courage raze, ur damage will increase drasticaly). After that, use Daze, and then ****** Trap, followed by Slumber.
This won't make sure u stay alive, but it will surely help. But still, count on dying, A LOT!...
If u need anything else... PM