There are 2 bonuses from this skill.The one is % physical damage reduction and the other is %Total damage modified.I believe its the same case with Discord.The total damage modified just doesnt show on the damage info of the skill when the skill is active and the % physical damage reduction does on its respective info screen.So can we make it so the % damage is shown as other buffs does.
Might of the Bear’s TDM is not a global buff like the phys res is(only actual buff stats goes in char sheet), so it only affects savagery; and will thus only display for Savagery dmg (Discord is the same it’s not a global buff but direct dmg to Cadence hit only)
I see i tough i get the bonus damage when i have savagery stacks like the phys res bonus.And the total damage i get just by putting points in the skill.A bit strange but… 
that’s because Stormtorched adds a global % buff, which does go in char sheet; but since it’s a buff then only is “buff” present when sav stacks are present (similar with Might of Boar OA and regen bonus)
Might of Bear doesn’t affect that interaction or %dmg either (tdm doesnt’ boost buff % but output dmg)