The skill simulator shows that you can use most skills on mount for Highlander. Barb and Doppel provide buffs.
I mentioned that in another thread where somebody else asked the same and I said Hacka, Highlander, Rodel as you get mounted skills and can even use a good shield to do damage with your Rodel skills if you want to. The image is kinda like a traditional knight on his stead with a shield.
Highlander includes Crown, Mullinet. Skyliner and the first skill. Looks pretty good, you only loose the Cross Guard (only 2-hand anyway), a Cartar Stroke (has casttime anyway) and Cross Cut. Mullinet and Skyliner both have “Atk speed based” so can be used fast if you got the speed. Also no skillpoint seems to be wasted as you can use all you max all while the skills are cheap for their damage.
Well Barb provies War Cry which buffs damage and reduces defense with 10 targets and Frenzy.
Rodel gives you defensive shield skills for a mount.
In the end I am glad you don’t get perfect laser focused builds anymore and will have to take a bit of penalty if you want something specific.
I at least will try to try the combination I mentioned above as the image and flavor looks good. =)
Being on a mount with the defensive combinations could be great for PvP in my opinion as “pure con” stacking will be gone and speed with some defense can be important.