I haven't really played wow since I quit raiding sometime midway through the Panda expansion, and I haven't played a warlock since Burning Crusade/Sunwell.
I have done a lot of reading online to catch me up on how to play a warlock (I boosted one to 110), but had a couple of questions about affliction (the spec I'm currently leveling with).
I don't really understand soul shards. What is their purpose - are they used for anything other than UA? All the guides I've read said UA is low in priority unless used before a Deathbolt or summoning the tentacles pet (name escapes me right now). I've also read that before a Deathbolt (or is it when I summon the special demon) I should try to cast several UAs (which isn't practical in leveling), but I don't understand why.
I saw an explanation that the UAs don't stack but it extends the life of the dot - but if I cast them back to back it seems like it's a wash - the amount of time it takes me cast it, is the amount of time the UA gets extended for - or am I not understanding something? Example - UA 1 goes up for 8 seconds. I cast UA 2 it takes me 1.5 seconds, so now I have UA1 up for 6.5 seconds and UA2 up for 8 - UA 1 expires eventually leaving UA2 up for just 1.5 seconds. I don't understand why it's worth the time to cast extra ones like that unless I have time for fillers. Is the idea to put 5 up extending the dot for 7.5 seconds - is it really that valuable to use up all the casting time?
So - I guess there are a few questions there -
1. What is the point of soul shards (other than for UA) and why should I care if I'm capped?
2. When and in what amount would I want to stack UA - I see sometimes people say 2 others say more
Also - I've leveled 110-114 as affliction. Seems to me that things die super fast. I haven't even come close to dying yet. I pull as many mobs as I can gather up and it seems to me they go down fast. I've seen some places where people have said demo leveling is even faster - thoughts?
Thanks for the help