Took a look at your build and I saw a few potential problems/rooms for improvement.
First, your fire defense is not actually soft capped! This can easily be resolved by boosting those Luck of the Gambler sets in Weave/Combat Jumping/Maneuvers! Every percentage under 45 counts.
Second, assuming you are constantly casting burn, you are actually using more endurance (.19/s) than you are gaining (.17/s) and will eventually crash due to lack of endurance. A simple fix to this is to grab the Atlas Medalion, which would bump it up to .32/s. That gives you a lot more room, and you free up some of your slots which were for only recovery and pump something else up. For example in your Burn power you can slot another Unrelenting Fury instead of Armageddon Dam/Rech for a 4% boost in Damage.
Third, Do you use super speed? If this is intended to be AFK and you only use the character for farming, it isn't needed. You can use that to grab a concealment power for one last LotG Mule. You can do the same with Rise of the Pheonix. I don't believe the proc you have slotted there will ever trigger outside of using the power.
Lastly off the top of my head your -Res proc in Blazing Aura is not as useful as having it in Burn, where it will proc every time. Out of the picks to swap it with, I would do the Superior Unrelenting Fury, since you are already not slotting it for the 4% damage buff, and it has 7.5 PPM, which will work well on an aura toggle like Blazing Aura. If you do grab that bonus then I would do either smashing or lethal.
I hope this helps! If I got anything wrong please someone correct me! 🙂