Personally I would just bring back Shield Oath as basically a heal shield Sheltron and Intervention(still cost Oath gauge though), and Clemency as well(still costs MP), have Cover be a 500-600 cure potency Regen and have 1200 cure potency shield, and for Atonement I would basically rework it and Sword Oath to where the ability name, potency, and animation change based on the number of Sword Oath stacks(less stacks = more potency) though it does require bringing back Savage Blade as the combo ender over Rage of Halone which then upgrades into Royal Authority(Royal Authority would be level 70 Sword Oath upgrade and Rage of Halone would be level 60 while having Atonement be level 50)