Druids and Sky scouts
Sky scouts only work in groups. I dislike scouts in general, expected them to be replaced by a new Ranger by now.
Druids are mostly useful for mass refresh, which is only useful early in the wipe. Stoneskin and healing cloud are nice, winds is cool. Druids aren't bad, they are just missing something no group can live without. They become boring. Swarms is not worth meming over granite hands, which is a spell that's both terrible and amazing. Veil of ice is worthless. Druids are too heavy up top, and too delicate until legendary (with stone and healing cloud). They simply need a little rebalancing, upgraded frags.