No More Classes?

[Kuwagami]

The only supportive healing options are Raise and Physicks. Other classes can do debuffs like your referring to.

I know no other class which can drastically reduce incoming damage like that. Bard had "10% less damage" RoD in 2.0 but got nerfed to current version so it's not in the question.

Virus and E4E are supportive skills designed for a healer. (as there is no debuffing job in FFxiv)