Miasma II (ミアズラ, Miazura?) is a magic ability in Final Fantasy XIV and a stronger version of the Miasma ability. The spell appears as an Arcanist ability available at level 46. Miasma II deals unaspected damage with a potency of 20 to all targets in range surrounding the caster and deals damage over time with a potency of 10 for a period of 15 seconds. In addition, the ability also has the chance to inflict the Disease status for a duration of 15 seconds. Miasma II has a casting radius of 5 yalms and has an instant cast time and a recast time of 2.5 seconds. The ability can only be used by Arcanists, Scholars, and Summoners.
In the Japanese version of the game, Miasma II is called Miasara.