Shadow door

Shadow door, originally known as Shadow's door, was a common illusion spell that allowed the wizard to pass through an illusory door, making them invisible.

Effects
The spell created an illusion which appeared as a door. The spellcaster could step through the illusion and "disappear". However, it actually caused the caster to become invisible, fooling many creatures. The fooled creatures may have even inspected the door, seeing it lead into an empty 10 ft by 10ft room. Fully distracted and convinced that the caster had disappeared, the mage could unleash an attack on the unexpecting creature. The duration of the invisibility scaled with the experience of the caster.

Shadow door did not affect creatures with innate truesight, or a creature under the effect of the true seeing spell, as well as other magical detection methods.

Components
Unlike almost all spells, shadow door only needed a somatic component.

History
The spell was created in -600 DR, and named after, the Netherese arcanist, Telamont Tanthul, who also went by Shadow.

Appearances

 * Video games
 * Baldur's Gate II: Shadows of Amn
 *  Icewind Dale
 * Icewind Dale II