Millón Escudo

is a Kidō spell. It was the technique used by Sōsuke Aizen to block an attempted sneak attack by Ichigo Kurosaki during the battle over Fake Karakura Town. While both the number and classification of this particular spell is not expressly stated, it most resembles a bakudō (binding) spell.

Description
The technique is considered a Bakudō spell. The technique allows for the creation of a light green, hexagonal barrier that is normally fixed to one central area and, when inactive, remains invisible. Upon contact with an outside force, the barrier enlarges to fully to protect whatever it is affixed to. The barrier protects from the attack keeping it away from the target, gathers the energy in one area, then it momentarily absorbs the energy from the attack and then forces the attack outward and away from the shield in effect, dispersing the attack altogether. It is powerful enough to block a point-blank attack with a black Getsuga Tenshō.

Incantation
Unknown

Known Practitioners

 * Sōsuke Aizen