Adds chemical property encephalophrasive

code/__DEFINES/chemistry.dm

@@ -187,6 +187,7 @@
 #define PROPERTY_NEUROSHIELDING "neuroshielding"
 #define PROPERTY_ANTIADDICTIVE "anti-addictive"
 #define PROPERTY_ADDICTIVE "addictive"
+#define PROPERTY_ENCEPHALOPHRASIVE "encephalophrasive"
 //Legendary, only in gen_tier 3+
 #define PROPERTY_HYPERGENETIC "hypergenetic"
 #define PROPERTY_BOOSTING "boosting"

code/modules/reagents/Chemistry-Generator.dm

@@ -344,7 +344,8 @@
 											PROPERTY_ADDICTIVE = list(PROPERTY_PSYCHOSTIMULATING, PROPERTY_NEUROTOXIC),\
 											PROPERTY_CIPHERING_PREDATOR = list(PROPERTY_CIPHERING, PROPERTY_CROSSMETABOLIZING),\
 											PROPERTY_FIRE_PENETRATING = list(PROPERTY_OXYGENATING, PROPERTY_VISCOUS),\
-											PROPERTY_BONEMENDING = list(PROPERTY_HYPERDENSIFICATING, PROPERTY_NUTRITIOUS))
+											PROPERTY_BONEMENDING = list(PROPERTY_HYPERDENSIFICATING, PROPERTY_NUTRITIOUS),\
+											PROPERTY_ENCEPHALOPHRASIVE = list(PROPERTY_NERVESTIMULATING, PROPERTY_PSYCHOSTIMULATING))
 	var/datum/chem_property/match
 	var/datum/chem_property/initial_property
 	for(var/datum/chem_property/P in properties)

code/modules/reagents/chemistry_properties/prop_neutral.dm

@@ -519,6 +519,34 @@
 /datum/chem_property/neutral/hyperthrottling/process_critical(mob/living/M, potency = 1, delta_time)
 	M.apply_effect(potency * delta_time, PARALYZE)
 
+/datum/chem_property/neutral/encephalophrasive
+	name = PROPERTY_ENCEPHALOPHRASIVE
+	code = "ESP"
+	description = "Drastically increases the amplitude of Gamma and Beta brain waves, allowing the host to broadcast their mind."
+	rarity = PROPERTY_LEGENDARY
+	category = PROPERTY_TYPE_STIMULANT
+	value = 8
+
+/datum/chem_property/neutral/encephalophrasive/on_delete(mob/living/chem_host)
+	..()
+
+	chem_host.pain.recalculate_pain()
+	remove_verb(chem_host, /mob/living/carbon/human/proc/psychic_whisper)
+	to_chat(chem_host, SPAN_NOTICE("The pain in your head subsides, and you are left feeling strangely alone."))
+
+/datum/chem_property/neutral/encephalophrasive/reaction_mob(mob/chem_host, method=INGEST, volume, potency)
+	add_verb(chem_host, /mob/living/carbon/human/proc/psychic_whisper)
+	to_chat(chem_host, SPAN_NOTICE("A terrible headache manifests, and suddenly it feels as though your mind is outside of your skull."))
+
+/datum/chem_property/neutral/encephalophrasive/process(mob/living/chem_host, potency = 1, delta_time)
+	chem_host.pain.apply_pain(1 * potency)
+
+/datum/chem_property/neutral/encephalophrasive/process_overdose(mob/living/chem_host, potency = 1, delta_time)
+	chem_host.apply_damage(0.5 * potency * POTENCY_MULTIPLIER_VHIGH * delta_time, BRAIN)
+
+/datum/chem_property/neutral/encephalophrasive/process_critical(mob/living/chem_host, potency = 1, delta_time)
+	chem_host.apply_effect(20, PARALYZE)
+
 /datum/chem_property/neutral/viscous
 	name = PROPERTY_VISCOUS
 	code = "VIS"