Coming from personal experience, but I love guardian tanks. IMO the theme around SPECIFICALLY arcane druid tanks is just french kiss and honestly should be leaned to more.
We all know Lunar Beam needs something… anything TBH to not be a throw away capstone. In addition I think Moonless Night is such a subpar talent that its just a waste of space TBH - nothing you do is ST outside of Maul so it makes this almost impossible to maintain which just makes the overall performance of this talent sub 1% typically.
I do, however however however, want to see Dream of Cenarius have more connection points on the talent tree. Its such a pain in the a** to get to ATM and you have to REALLY invest to want it.
Ursine Vigor needs to be replaced, Forest Walk could*** be nice if DoC is easier to get and the duration of the buff is 10-15sec instead of 3 sec… 3 sec… WTH am I going to do with 3sec 5% heal/movement based on Regrowth that requires another talent to use in Guardian?
Just some of my thoughts, I like the split of the Guardian tree between Phys/Bleed and Arcane/Recovery but some of these nodes are just pointless without the above changes.