Proof against transmutation was a quality that could be applied to magical armor.
It made its wearer immune to shape-changing transmutation effects such as disintegration, petrification, or polymorphing.
Bestowing it required spell immunity.
- ↑ 1.0 1.1 1.2 1.3 Sean K. Reynolds, Duane Maxwell, Angel McCoy (August 2001). Magic of Faerûn. (Wizards of the Coast), p. 137. ISBN 0-7869-1964-7.