I Dont have to explain it
I describe an attacks nature and its potential Effects and/or Aftereffects as well as hit point loss if any of course.
And ask the player to describe how this attack against their character is minimized by luck and energy and skill! The difference between the description for a failed defense (unless that hit reduces you below 0 hp) and a successful one … is pretty much how desperate or last second it normally seems and/or how much apparent energy/luck it takes to accomplish, even a successful defense could be described many ways... ranging from the bad guy doing really poorly, the character doing really well with the ability associated with defense, or the character getting weirdly lucky if that is the pc’s style. The lucky hero, the tough hero,
Note A magical hero can even describe his defensive actions and how they minimize his injuries in terms of his magic, just make it fit the theme of your character...
Hit points were described as primarily luck and energy and skill at minimizing damage all the way back in 2e of the game when wizards frequently had 1hp. How would explain luck and skill and a minutes worth of athletic dodging about not coming back fairly quickly.
Minions are fun tools for describing un-minimized attacks of heros.. and monsters because they don't have hit points. (well 1 doesnt hardly count)
HP could have been called Hero Points, but that doesn't really matter I am sort of treating them like a relatively normal power for the hero, which he can skin to his hearts content.