Whatever we do to fix this ult I am 110% convinced it must start with the nerfing of the duration and the removal of the bonus healing.
Also perhaps hitbox tweaking.
From there we can come up with any plethera of ideas that suddenly aren’t as OP as they’d be considered.
An ultimate that is balanced to last 15 seconds cannot save people as effectively as any actual defensive ult and “heroes never die” is an iconic line that is celearly meant to invoke a defensive aura of SOME kind