I don't like Stoneskin at all because it's a chore to cast it all the time. I don't know why so many parties, even in duty finder when doing non-difficult content, won't move until you stoneskin the whole party. It's really only effective on tanks.

Anyway, I might like casting it more if it actually looked pretty. Can't we do better than blocky textures spinning around a character? Maybe the target's skin could become rocky or crystalline for a second after casting it. Or just better textured rocks could swirl around the character.