Return of Reckoning

New-ish to MMO's and super new to Macros in general. Any good macro setups for the class?

Yes, do a macro with "/assist" in it. Just /assist, no name behind it.
Put it in your action bars and use a handy keybind (I use shift+R)on it.
Always have your guarded target as your defensive target.
During a fight, use this macro often to always have the same target as your guarded friend.

Really usefull in the mess that is the melee to focus down targets with a guarded mdps. It is also very good when guarding a rdps because you know who to charge and CC in the backline.

I see no point in using nerfedbuttons on a BO/SM because of the class mechanic.

As Aceboltz said, the only macro you need is assist. If you want a bit easier ability management I recommend planB addon.