Not sure if it’s a bug or intentional, but currently, keywords don’t provide information on hover if they are inside of a cinder-costing ability; both in game and in roster creation/collection. Passive abilities that contain a keyword do show additional information when hovered, and this helps a lot with keyword clarity. An example unit would be Axl Pyro and their ability Fire Flamer. Making it so all keywords are hoverable, even within cinder-costing abilities, would improve keyword clarity.
Yeah nesting is a bit tricky here. Not sure the right way to support this.