To start off with the oddball, I logged in the other day and saw the Khajiit passive that increases weapon critical increasing it by 46% on its first point investment. Pretty sure this is a glitch, but if not... wat.
Onto the major point of discussion, the PTS patch notes list three debuffs--only one clearly being defined--that I'm pretty sure are the same thing: Major Spell Shatter, Major Spell Resistance Reduction, and Major Breach. Spell Shatter comes from Pierce Armor, the sword/board skill, while Spell Resistance Reduction comes from Weakness to Elements. Major Breach comes from the Nightblade's Mark Target.
Now, all of these effects previously reduced spell resistance. While I've not looked at any ingame to know if there's simply a typo in the patch notes, do they all reduce spell resistance now? I'm going to go off on a limb and say that Spell Resistance Reduction may not actually be what it implies if it isn't a typo. More importantly, do all of these different debuffs stack--again, if they aren't typos? If so, dear lord.