False Idol is a Medium Sized Aragami introduced in God Eater 3.
The following information can also be found via descriptions of the Aragami found in the game's database.
God Eater 3
A medium-sized Aragami that is constantly floating. Its entire body is covered in strong armor, and it repeatedly changes forms while unleashing various Oracle-based long-distance attacks. Although it is of the Aragami variety that appeared in the Ashlands, it is still considered to be in the process of adapting to the Ashland environment.
False Idol has two forms: a defense form where it shuts itself away within its strong armor, and an attack form where its armor expands and it shifts to attack. In its defense form, it erects a barrier that negates shooting attacks, and in its attack form, it makes free use of wide-ranging long-distance attacks. Since the most effective way to fight it differs in each form, ascertaining its current form is the key to victory.