I'm honestly peeved about this to the point where I might try and make a post in the proper thread to highlight all of my problems with this new change. Please bear in mind that I've just now returned to the game after a long break, so this is an issue that many people have already gotten over. I, on the other hand, am just now running into the problem and am trying to figure out how to deal with it.
So, shields. I can't remember the exact changes made, whether it was decreasing how much the damage shield blocked or if they could no longer stack, but there's been a considerable nerf to them. I think the reasoning was to discourage spamming shield in PVP. Unfortunately, this has had terrible repercussions for PVE, because in certain dungeons and trials, some mobs and bosses have such high burst damage that you can't escape and your healer can't do their job in time, and the only way to keep yourself alive is to preemptively buff yourself to mitigate some of the damage. This is no longer an option.
Case in point, BCI. Rilis' 20k ranged instakilled me despite my shield each time. I was keeping my distance (on my petsorc), but despite how safe I was playing and how carefully positioned I was, you can't outsmart an instantly cast direct damage spell. My healer couldn't do anything, and I certainly couldn't do anything. I just had to take it and wait for rez. It happened so many times that my fully repaired armor broke. And bear in mind, I'm approximately CP 500 and decently experienced with pledges. But that didn't seem to matter any. At the end of the day, what did matter is the results:
Dungeons like BC1 are now a game of Russian roulette where you have to hope you don't fight a version of Rilis with the instakill. Otherwise the survivor achievement is impossible.
Glass cannon builds are no longer viable in dungeons with mobs/bosses with high burst damage.
If you want to attempt these, you will be A: throwing gold down the drain due to broken armor B: costing your team time and DPS from constantly dying and having to let your magicka regen after rezzing since you respawn with around 35% of your pool C:forfeiting opportunities to get survivor and even assassin achievements. I'm not sure why petsorc is on ZOS' hit list but I think you can balance out builds without killing them.
So that being said, I clearly need to find some way to deal with this better. What are some techniques a petsorc can pull to avoid an instakill? I don't plan to respec or alter my build, and yes, I do eat food that buffs my max hp before a pledge.