I feel like I've pushed the build to near peak potential. I could add a few more relics instead of jewels or thal runes, but overall, I don't think it would change the fact that it's a very fast farmer but lacks damage for any boss with high hp (small bosses like Astro, Xazax, Azmodan, etc. dies pretty fast)
You are pretty much bound to run a 2 builds setup for this character. Basically War Cry for farming and Elemental for maps. Keep in mind that Elemental also has few downsides in maps vs certain mobs/small ubers (like the sin heroe, sucks to go against, but I'd say it's the same for WC)
I hope to see changes to WC in the future to make it viable vs higher hp targets. I suggested Ben to add a 2nd skill to WC that gives a smaller AOE but more concentrated damage. You'd still want bigger AOE for speed clear and swap to this skill vs bosses.
I will keep trying to make it stronger, hopefully I can reach like 130+ War Cry but that would only mean about 75K sheet dmg, still not enough to clear higher hp bosses. It would need at least 200K+ to be efficient
Also, at this point, considering how much energy I have, Meditation is completely useless unless I want to go for something like Baal who drains mana like crazy, but otherwise, your mana doesn't go down at all. I decided to go with Continuity for speed farming as it allows me to buff less often.
PS : I don't have a Umbaru still...I managed to roll 10 total stats after 20 rolls on my first one and haven't tried again.
I haven't had the "guts" to roll mana regen on all my gear and go eagle stance instead of bear although I have 5-6 Moon Crystal UMOs. I don't want to potentially ruin by going full Moon Crystal on gear if ever 1) it doens't work out well or 2) I want to use the gear for something else.