New artifact in the Infinite Dungeon to learn antimagic

game/modules/tome/class/Actor.lua

game/modules/tome/data/birth/classes/psionic.lua

game/modules/tome/data/talents/psionic/discharge.lua

game/modules/tome/data/talents/psionic/distortion.lua

game/modules/tome/data/talents/psionic/dreaming.lua

game/modules/tome/data/talents/psionic/feedback.lua

game/modules/tome/data/talents/psionic/mentalism.lua

game/modules/tome/data/talents/psionic/nightmare.lua

game/modules/tome/data/talents/psionic/psychic-assault.lua

game/modules/tome/data/talents/psionic/slumber.lua

game/modules/tome/data/talents/psionic/solipsism.lua

game/modules/tome/data/talents/psionic/thought-forms.lua

game/modules/tome/data/timed_effects/mental.lua

game/modules/tome/data/timed_effects/other.lua

game/modules/tome/data/zones/infinite-dungeon/objects.lua