Subtle Blow for Magic

[Economizer]

I'm surprised that BLM, RDM, or SCH haven't gotten the equivalent of Subtle Blow but for elemental magic.

Actually, Subtle Blow gear works on damaging magic.

Maybe you mean that spell casters should get Subtle Blow gear (or traits) that activate for magic?

Since when ?

When hit by a spell that does direct damage, enemies gain 10 TP. This is why most subtle blow testing is done with Dia or some other damaging spell. This is also why I spam Dia when helping Blue Mages learn magic.