Even if it works properly - the libram thing, I still wouldn't use it, having FoL libram with 2h weapon is always a good thing, maybe in certain situations you *could* switch it to str libram, but those situations are quite rare.
Affli lock is just LoS and lots of resil + Bauble + 1h+Shield, they can't deal enough damage to kill you because you'll be healing yourself like crazy and they'll constantly lose hp.
Spriest is basically just blow everything in 2 sec and hope for the best or go FULL resil with shield and bauble of true blood and try to either oom it or kill it that way.
Mages (fire/arcane) aren't that hard, but for them you kind of need to use LoS and also never buff yourself with GBoK/BoK - only use might and don't use sacred shield at the start (because they'll poly you and then spell steal it). Other than that you just need to get close to them which when they're not frost isn't hard - use judgement of justice always and dispell the slows. Use HoF when they spawn mirrors.
Frost is a whole other story - you need to get frost resistance gear, bauble of true blood and to be able to LoS them, that's the only chance of killing a frost mage in a legit fight....
or say **** you and use Free Action Potion and watch them flop around while being unable to do a thing.