Camouflage

Effect: Raises threshold to detect them by 1 per success. Cannot move or illusion is broken.
Range: Personal
Defense: NA
Cost: 1
The caster blends in with their surroundings, and may fool a single sense. The most common is sight, followed by hearing. The character makes an expression + spellcasting check. Each success raises the threshold to detect their presence by 1 when using the chosen sense.
The most common sense is sight, but hearing or scent are also useful from time to time.