En-II like that have long been discussed on RDM boards. Break would be nice too. Personally I think RDM changes should be more along the lines of things that do little or nothing for the RDM themselves, and only really do much if the RDM is partied.
Maybe something like a 225 WS (since we don't get one otherwise) that consumes TP and MP to restore HP/MP of surrounding party members equal to the TP spent...but costs the same in MP (or maybe up to 300HP/150MP for 150MP cost). It'd be pointless solo, but possibly quite nice to have in a small group situation.
A SCH-like JA to make the next Enhancing spell AoE for a greater MP cost would be a nice addition as well, and again pointless to the solo RDM.