There is no RDM Job in this game - it's been constantly requested by players to be implemented but personally, I don't think it ever will be, at least, not like the FFXI version.

Hence the reason why BLM got Convert - RDM is effectively a superfluous Job, as it's role/abilities are effectively taken by other classes/Jobs.

As for spells like Enfire and Haste, at the moment these are enemy-only abilities, as I don't think SE will be making them available to players any time soon (1.0 was like this as well - showing players npcs using fancy special abilities and spells that were never made available to players either, after all, remember Y'shtola's 'bubble shield'? ).