||The twelfth Angel
The twelfth Angel, Leliel
, has a misleading appearance and possesses bizarre properties and powers. The Angel initially appears as a large, floating, black-and-white patterned sphere, and, when attacked, it re-manifests as a large black shadow. The Angel's true body is the shadow itself, and the "shadow" of the Angel is the floating sphere, this makes this Angel one of the most difficult to combat as it is impossible to attack a virtually 2-D creature. Leliel is explained as possessing an inverted AT field, which allows the Angel to take into itself anything in range of its shadow-like body, but keeping it contained. (An analogy would be a two-way mirror.) Within the inverted AT field is a Dirac sea, which "could lead to another universe." At its fullest extension, the Angel's body is 600 metres in diameter and 3 nanometres thick. It is unknown whether Leliel had a core.