[Autumn]

Reflect projectile is an incredibly strong status that could decide a fight almost all on its own if say a gunner had an excel rifle, and shot a 3x rifle into it, or an arbalest doesn't take care and fires one of their strongest skills as well, let alone a ryemei mage firing off a CM'd Ryemei into someone's face and being greeted with 700+ of their own damage.

The main point of mysterious is to hide your status effects so that an enemy doesn't know if you're stealing a spell, invoking or preparing a big buff from behind a smokescreen, I don't think its intended to mask cheesy Spirit Mirror strats.