How to Guardian
Take a build with 5 or 6 in radiance and run with some valkyrie gear mixed in. I’d also personally argue to drop the greatsword in favor of sword/focus, scepter/torch, or hammer so you have a little more mobility/control with your DPS.
Try this semi-meta build!
Scepter+Focus makes you less vulnerable for kiting. And if you can land a scepter+focus 3,2,4,5 swap GS gs#2 Judge’s Intervention on your unaware target it is likely that he will go down. With GS you have some heal with symbols and some nice Aoe damage too so they have to flee but if you swap for scepter their only option is to melee you otherwise your scepter auto and the immob+Smite will kill them. If they start melee you while you are wielding sc+f you have an extra condi clean/blind and an extra burst with focus#5.
Against feeing foe you have some poison to counter their heal and also your meditation teleport and your GS leap along with the scepter immobilise.
But be aware: your heal comes from your offensive utilities (meditations). So make sure you don’t use your SmiteConditions or CoP for 2-3 “weak” condi like 2 seconds of burning or 2 stacks of vulnerability.
If you have guard kill stacks and want more DPS you can drop 3 points from Honor and get something more damage. Radiance likely.
My 2 cents…