I wonder if they turn carbuncle into just flavor and have him auto attack your current target, similar to how phoenix and bahamut behave, dealing nonexistent damage (like 10 potency). Summoning him, would give you “searing light ready”. Radiant aegis would be a summoner ability.

Summoning phoenix would have a similar effect, where it would give you “rekindle ready” for 2 minutes.

This would turn rekindle into a real ability instead of what it currently is. It would also take away most of carbuncle’s jank.