If anyone wants to nerf the permanent 20% DR from Shield Oath to something like 25% chance to -20% dmg received, then Warrior's Defiance should be nerfed to something like 25% chance to heal 20% of dmg received.

Warriors have many tanking stuff, just need to be more actively rotate the right skill on the right time. If they make WAR's playstyle the same as PLD, it shouldn't be fun.