There aren ' t always cameras around to support one ' s testimony . <| sep |> From some testing and maths , it ' s 15 % stronger than Flash under Shield Oath due to them having equal potency Flash is ~ 600 potency , Clemency is 1200 potency halved since it ' s a Heal but Clemency not being outgoing damage and therefore not being subject to the 15 % damage reduction . The thing is , for 3 x the MP cost , it ' s a case of whether you can manage it . I don ' t know how many Flashes are required I just completely overload with them at the start out of twitchiness , but if it ' s more than two you ' re dry on MP , since Clemency takes 40 % of MP and Flash takes 13 %. So over two uses you can either get 230 % of a single Flash for 80 % of your MP , or 200 % of a single Flash for 26 % of your MP . Assuming a crit strength of 1 . 5 x , it ' s 172 . 5 % of a Flash , so all I can think is people are confident they only need two to three Flashes and are confident they can get the MP back by cycling Goring Blade , so they ' re going for the chance that Clemency will crit .