You searched for ILLUSION GRID
1. illusion grid
Syntax: cast 'illusion grid' <target>
Illusion grid operates much like calm except that it has the ability to stop
a specific target from attacking its victim.
Targets with resistances to mental damage will be more challenging to trap
inside a grid. The higher level the player is above the Illusionist, the
more difficult it will be as well. Successfully casting this spell on a
player is more difficult than successfully casting it on a mobile.
If the target is captured in an illusion grid, his or her intelligence will
take a blow.
It is against the rules to trap another player's target in a grid of
illusions unless given permission to by the player.
Monsters caught in an illusion grid do not track down targets which have
fled from them in battle.