I go as Monk and when PLD started to do Guardian + Phalanx + Guard, I had to Meteodrive to remove the guard and Enlightment to make the distance so PLD cover is gone. For 5s claim, this is quite a long procedure but sometimes it works... Hope this helps :)
Warriors can pull off similar with Primal Scream to break guard and using Blota to yank the guardian paladin away, but that means saving your LB specifically for these situations. And of course it's not reliable with a pair of paladins because they can just swap who protects and caps immediately after the guard debuff wears off and your LB is already blown.
SE really needs to fix how guardian + guard works, it entirely breaks the balance of Onsal Hakair when this gets abused.
So I tried using RPR now and since their LB is pretty fast and their LB can remove guard as well + moving away, I guess RPR do better job to disturb PLD
Doesn't work if your stunned though. Yesterday was against a group that put an army of whm in front and lb one after the other to keep people stunned while PLD + other play took the node. Match wasn't even close, final score was 1600/650/400.