Crit Guardian build
44% Crit Chance sounds about right. Very roughly speaking, every 21 points of Precision over 916 equal 1% Crit Chance. Technically, with your 5% Sigil your effective Crit Chance is 49% but the game won’t display that. What Runes are you using? That’s about the last area you could squeeze something out of without any radical changes.
If you could adjust your build to drop another 50 or 100 points in Radiance that would of course do it. Quite honestly, I’m not sure what you want with Defender’s Flame when the only Block you have is the occasional Aegis from Virtue of Courage. If you decided to drop more points in Radiance, I think Toughness would be the line to cannibalize. Shame your weapon loadout can’t take advantage of Right Hand Strength. It’s the Trait for anyone who wants to go for a Crit-based build.
6 Superior Runes of the pack will give you 90 power and 100 precision, that will up your crit chance another 4% or so. Getting the Guild Assassin Backpack with a ruby jewel will also up it a bit, maybe another 1%. Maxing out Radiance will give you another roughly 4% increase.
Oh yeah, equip Superior Sigil of Perception on your main weapon. This gives you +10 Precision each time you make a kill, max stack of 25 which lasts until you die, for a total of 250 Precision, which ups crit chance by 10%. If you use a Bowl of Curry Butternut Squash Soup and Artisan Maintenence Oil, you can get a rather large boost in Crit Chance as well.