Best used in any attack team but most effective in a Phantom Attack team.
She is not to be confused with The Ninjas' Elegy's Orochi as they are two different snake daemons.
She claimed that she didn't do any harm to the Anima during the "Wondrous World of Weaponry" event but only released a gas. She claimed that she got her powers back by drinking a strong espresso after waking up.
Yamata no Orochi is the only antagonist that is not a top Guardian Ghost in a tower event.
She is mentioned as an example of a Phantom in the tutorial along with the Nine-tailed Fox, and Shuten-Doji. (The examples were created before Yamata and Shuten were released, so it is possible that Nine-tailed Fox may come out as a daemon)
Academy Form may be a reference to Ryuko Matoi from the anime Kill la Kill with the same color sailor uniform and rebellion against the student council.