I was reviewing the class variants after seeing the Update video from DNDbeyond and was thinking of adding one (or more) for Rage on the barbarian

The basics of it would add a number of small utility boons to the barbarian that are usable outside of raging but following the theme of the class, shorter burst of "rage" skill/ability check related boons maybe some mobility one. Thinking of a number of uses equal to the barbarian's strength mod per rest (short or long)..

Athletics and intimidation are good starts, but after that I am trying to think of additional application for the "quick" flashes of rage style