[BG2:ToB] Opcode #69 - Non-Detection

[aVENGER_(RR)]

Opcode #69 (Non-Detection) natively protects the target against opcodes #47 (Cure Invisibility) and #116 (Remove Invisibility). However, it does not protect the target against spells which remove illusionary protections by school or secondary type.

 

In game terms, this means that the Cloak of Non-Detection protects the wearer against Detect Invisibility and Invisibility Purge in all circumstances. It doesn't protect the wearer against Detect Illusions, Oracle and True Seeing unless the wearer is under the effects of invisibility which isn't flagged as an illusionary spell (i.e. a Thief in stealth mode or a Mage holding the Staff of the Magi).

 

Note: cross-post from here.

[aVENGER_(RR)]

Two semi-obvious notes.

 

Opcode #69 makes STATE_NONDETECTION return true on the target while active. This opcode is negated by opcode #70 (Cure: Non-Detection).