These two spells assist the target to remain undetected. There are better spells such as Veil of Invisibility however these are thematic. This first effect is inspired from cloaking devices – the idea that true invisibility has some difficulties, so instead the illusion allows the physically of the thing to be present, but not outwardly obvious against its surroundings.
Disguise of the Chameleon
Muto Imagonem / Intellego 10, R: Touch, D: Sun, T: Individual
The target’s image is altered so that it blends and matches the surrounding environment.
(Base 1, +1 Touch, +2 Sun, +1 image moves, +1 image adapts to environment, Intellego requisite free)
The second spell is a response to Intellego Imagonem spells which detect and remove illusions. This allows the target to wrap themselves in herbam made clothing, and then that clothing will adjust to create a natural camouflage. Its a spell to alter clothing made from Herbam materials, which transforms into materials from the surrounding trees and plants. Admittedly it has an advantage of not being detectable as an illusion, or able to be perceived by Intellego Imagonem spells; however it is a very specific and probable inefficient solution.
Garments of the Hidden Woodland
Muto Herbam / Intellego 20, R: Touch, D: Sun, T: Individual
The spell transforms the Herbam material worn to match to the surrounding Herbam materials, and conceal the target. If no materials are present the clothing remains in its last form and shape.
(Base 3, +1 Touch, +2 Sun, +1 size increase in materials, +1 adapts to environment, Intellego requisite free)
All the new spells for Ars Magica can be found here.