Yet another (stupid) idea to fix TBN.
Here's a crazy idea i had a few minutes ago.
What if we take TBN, and turn it into an AST bubble? You freeze the animation where during TBN you hold your sword aloft, expand the size of the bubble to being a larger dome, and while active you reduce the damage dealt to all allies in the bubble by a percentage.
Alternatively, or additionally, whatever, a portion of the damage dealt to all allies is either converted into blood, or returned to you as HP/MP.
Like the AST bubble, the barrier drops when you move or do any other actions.