Blue
Ravenous Bugblatter Beast of Traal
Normal pre-emptive healing is temp HPs, but that has a balance point of not stacking. Perhaps something like instead of seeing a specific action, they instead give an idea of how the combat will progress, allowing one to avoid damage - but the immediate future gets muddled quickly with so many descisions being made, so it's a limited amount - i.e. the tHP. Perhaps with a special rider that allows them to avoid conditions from damaging attacks (but not other sources) as long as the tHP exist (and are not overwritten by new tHP).