I like support classes but dancer ain't it. In fact I believe dancer was a mistake. I don't like the focus it has on buffing a single player a lot vs buffing every party member. I also don't like how that focus changes the way people play. Now everyone wants a selfish DPS who they can feed all the buffs to and 90% of them don't parse so we end up with a situation where mediocre players pick selfish jobs and then proceeded to get buffed like crazy by everyone and they still barely put up more damage than unbuffed support DPS.

A great support class would be one that buffs everyone's, or at least one party member of each role's DPS. Something like AST except with cards that actually provide a decent amount of rDPS to the party.