Hmm... I'm starting to think there's something more fundamental wrong with critical damage in this build (0.914).
I just 1HKO Vetrar (494 HP) with a crit using this build:

I double casted burning blade (1 on strategic and again in tactical), that would only get my attack to 38 in battle, the 3 cold wouldn't even do anything (I forgot to switch out the amulet). He's vulnerable to fire, so 16 more fire damage. So basically 51 attack... crits to 500+ damage? That's like 10x the attack. Even if they remove 1x from assassins (which I am) it really wouldn't change much.
I remember last time I soloed Vetrar (probably in 0.912), it took 3 crits + a couple non crits (from berserk sword's maul). So something happened since then to now. Not sure what it is, but it's not just the 150% (instead of 50%) from assassin they listed as fixed in the 0.915 changelog.
And it's not just Vetrar, my Shrill shield (auto counters with static blast) should be doing around 24 damage, but it's criting for 450+ on stuff that hits me. I'm soloing pretty much everything.