This would be a little different play style, but I was expecting something more like a Chloromancer from Rift.

They would play different from Dancer too. Dancer has the front line role of attacking while supporting. The Chloromancer has the dual role of combining ranged spell damage with heal effects as a convert % as well as pure heal spells too from the back line.

As for how we work this into Final Fantasy, I'm not too sure. Geomancer maybe? Chloromancers do focus on nature based attacks.