Just speaking for some of the harder trials and/or raids, but after seeing one of the 'support abilities' spreadsheets the fine folks over on the Balance were making (based, of course, on data that could but most likely won't change), it seems SE has made dancer into the only true 'buffer'. Yoshi-P pretty much said this directly in his Famitsu interview.
I thought that 5.0 was attempting to decrease the 'synergies' between jobs, and yet dancer seems to be synergistic with everything. Thoughts?
**Link is not my work at all and just taken from the reddit thread u/Jahaudant posted that will be updated soon, it seems**
https://i.imgur.com/pJ8k7B8.png