Bravely Second - Neo Urchin (99)
While you might not think so, all of Urchins attacks are magic. They all pass through Magic Mirror, but with sufficient M.Def they can easily be tanked. For that reason, my Guardian Yew went to the effort of pushing his M.Def and buffing it to 200% in order to break down damage taken. Edea, who was using Ventriloquism either way and thus could not deal any real damage, further debuffed using Charybdis so the damage taken went down to 0.
The Gold Border Neo Urchin can drop an Unearthly Bun, but has none to rare steal.