Psionic Backlash is a Passive Feature and Illithid Power. This feature allows a character to, when a nearby enemy casts a spell, use their 
Reaction to deal 1d4
Psychic damage for every level of that spell.
Description
=
When a nearby enemy casts a spell, you use your reaction to deal 1d4Psychic damage for every level of that spell.
Properties
Range: 9 m / 30 ft
How to learn
(Information not yet added.)