Anyone happen to have the text for when a Rune of Absorption takes effect? I'd like to know what it looks like from the outside. IE, seeing someone else's RoA block an attack.

You don't see others' RoAs fire, only RoAs protecting you.

I believe it looks something like ...

"A magic aura flares around you and completely absorbs the damage." if it absorbs all the damage.

There's another if it only absorbs part of the damage, but I can't remember it off the top of my head.