I really expect this to be controversial but I generally have found regen to always be the best option for king ups, and it's also pretty annoying when you get a king to a nice number for them to heal up so freely.
So... I'd like to potentially see the kings hp bar being broken down into segments that once reached they can't recover past (exception of Savior and potentially Savior could be a little buffed in overhealing/providing a shield to the king).
My initial thoughts would be the break points being at 50% and 75% but could see a number of different variations working suhh as 60% and 80%.
Why? Adds further urgency into the game, braking and leaking to the king more important, and well a Savior buff.
