It's pretty apparent that the developers want the melee "gimmick" to be positional DPS, given how MNK and DRG, both classes that have *never* been positional in any other game or FF series, are positional DPS. The rogue/thief type has almost always been positional so I think it'd be really weird if they went away from that. As to the DoTs and DoT manipulation, I tried to do that with Eviscerate (it's a lot like Fester), though I think it might be interesting to see some further manipulation with Master Thievery (possibly regaining 1 stack of Ill-gotten Gains for each of your DoTs on the target; it fits with the "thievery" part of the name as well).
I think it should be mentioned, on top of this, that I'm adding an extra resource to juggle/manage, which is something that neither MNK nor DRG has to deal with.
I could see putting something like that on Master Thievery, but I couldn't really see it being put on anything else since it's more of a CD attack/utility and, unless I increase the number of abilities (which is probably fine; Pilfer and Gil Toss would probably best be gained at the same level, which would allow for an 18th ability) there's not space for it.For flavor. I might also include some "teleport" style sneak attacks. Attacks where you instantly move behind your target and backstab them for enhanced dmg.
It's not supposed to be a melee range healer. The only abilities that are melee ranged are those gained from THF, and, even then, those abilities that are required for healing purposes are ranged (Pilfer becomes a 20y range attack with Enhanced Pilfer). The only time that a DNC would be in melee would be if they are electing to attack instead of heal, which is effectively the same as a SCH/WHM turning on Cleric Stance. DNC is intended to operate at range because all of its heals are ranged (and they still have cast times); it's only supposed to close during those times when the other healers would be turning CS on.As for Dancer. Assuming this is to be a melee range healer I think you'd do well to make it more passive than direct.
The only way you'd get dances as constant effects is if the class were turned into DPS/support like BRD instead of an actual healing class. There would need to be multiple dances to justify having them and DNC is *already* heavily restricted on the number of actual healing abilities. Healers have a very specific list of requirements and, no matter how you set it up, you'd run out of abilities *way* too quickly in order to cover those required functionalities. Furthermore, your flourish idea is dependent upon the DNC actively attacking as part of its primary role rather than actually healing full time, which is not what it is designed to do, nor would it be a balanced construct because you'd be getting a healer *and* a DPS whereas the other healers are simply healers (even if it was at a limited amount, you'd still be getting a constant source of damage). On top of this, by using your dances and flourishes, *everything* would become an AoE which is simply terrible for a healer as it becomes underpowered or overpowered (not to mention that some stuff just couldn't be implemented as such, like a rez or cleanse). If you elected to have certain effects automatically choose targets (re: targets person with lowest hp), you end up having a healer where you never have to pay attention to healing. It plays exactly like a DPS and gives the full benefit of healing without the player actually having to heal.Dances, which are constant effects, and "flourishes" which are instant one time enhancements to the Dances.
Basically, what you're suggesting is a melee BRD, with dances replacing songs, which is not what I designed nor is it what I would want DNC to be. Even then, if it *were* a melee BRD, it would be straight DPS and not a healer because the entire construct that you're going for doesn't work for a healer.