diff --git a/data/mods/Xedra_Evolved/effects/effects.json b/data/mods/Xedra_Evolved/effects/effects.json
index 049aa28f8d46e..34a8ede1064b0 100644
--- a/data/mods/Xedra_Evolved/effects/effects.json
+++ b/data/mods/Xedra_Evolved/effects/effects.json
@@ -212,22 +212,20 @@
     "desc": [
       "Your complexion is wan and spent.",
       "Your skin is pale and your eyes are thoroughly bloodshot.",
-      "Your skin is pale and have turned dark red.  You feel a constant hunger, like the food you eat is no longer nourishing you."
+      "Your skin is pale and your eyes have turned dark red.  You feel a constant hunger, like the food you eat is no longer nourishing you."
     ],
     "apply_message": "You feel the blood rushing from the wound and then a pressure that reminds you of backwash.",
     "death_msg": "You succumb to your deadly necrotic condition.",
     "apply_memorial_log": "Contracted a bloodborne pathogen out of legend.",
     "remove_memorial_log": "Rid themselves of a horrific curse of the blood.",
     "resist_traits": [ "ACIDBLOOD" ],
-    "resist_effects": [ "blood_treatment", "blood_quenched" ],
+    "resist_effects": [ "blood_treatment" ],
+    "blocks_effects": [ "cold", "flu" ],
     "max_intensity": 3,
-    "int_add_val": 1,
-    "int_decay_step": 1,
-    "int_decay_tick": 28512000,
-    "//": "Each stage is intended to last 3.3 days.  I'm not sure if I've got the decay ticks correct on this.",
+    "//": "Each stage is intended to last 5.3 days.  I'm not sure if I've got the decay ticks correct on this.",
     "rating": "bad",
     "blood_analysis_description": "Unknown RNA virus is rewriting sampled blood cells.",
-    "base_mods": { "speed_mod": [ -10 ], "str_mod": [ -1 ], "dodge_mod": [ -1 ] },
+    "base_mods": { "speed_mod": [ -5 ] },
     "scaling_mods": { "speed_mod": [ 15 ], "str_mod": [ 1.5 ], "dodge_mod": [ 1.5 ] }
   },
   {
@@ -290,13 +288,13 @@
       "str_mod": [ -1 ],
       "stamina_min": [ -100 ],
       "stamina_max": [ -200 ],
-      "stamina_chance": [ 900 ],
+      "stamina_chance": [ 9000 ],
       "fatigue_min": [ 10 ],
       "fatigue_max": [ 20 ],
-      "fatigue_chance": [ 900 ],
+      "fatigue_chance": [ 9000 ],
       "h_mod_min": [ -1 ],
       "h_mod_min_val": [ 0 ],
-      "h_mod_chance": [ 900 ]
+      "h_mod_chance": [ 9000 ]
     },
     "scaling_mods": {
       "str_mod": [ -2 ],
diff --git a/data/mods/Xedra_Evolved/effects/vampvirus.json b/data/mods/Xedra_Evolved/effects/vampvirus.json
index a2a12a9aeb102..d3ed462fa92d0 100644
--- a/data/mods/Xedra_Evolved/effects/vampvirus.json
+++ b/data/mods/Xedra_Evolved/effects/vampvirus.json
@@ -92,6 +92,31 @@
       }
     ]
   },
+  {
+    "type": "effect_on_condition",
+    "id": "EOC_COMPLETED_ROLL_REMAINDER",
+    "effect": { "u_message": "You flush with desire as you think about blood." }
+  },
+  {
+    "type": "effect_on_condition",
+    "id": "EOC_SUCCESFUL_ROLL_REMAINDER",
+    "effect": { "u_message": "Suddenly you feel your heart pounding and you realize a new ability." }
+  },
+  {
+    "type": "effect_on_condition",
+    "id": "EOC_SUCCESFUL_ROLL_REMAINDER2",
+    "effect": { "u_message": "Suddenly you feel your heart slowing and you realize a new ability." }
+  },
+  {
+    "type": "effect_on_condition",
+    "id": "EOC_ADD_VAMPIRUS_INTENSITY1",
+    "effect": { "u_add_effect": "vampire_virus", "intensity": 2, "duration": "PERMANENT" }
+  },
+  {
+    "type": "effect_on_condition",
+    "id": "EOC_ADD_VAMPIRUS_INTENSITY2",
+    "effect": { "u_add_effect": "vampire_virus", "intensity": 3, "duration": "PERMANENT" }
+  },
   {
     "type": "effect_on_condition",
     "id": "EOC_VAMPIRES",
@@ -121,8 +146,13 @@
               "id": "eoc_vampvirus_1_trait",
               "condition": { "u_has_trait": "VAMPIRE" },
               "effect": [
-                { "u_roll_remainder": [ "EYEGLEAM", "STAMINAFORBLOOD" ], "type": "mutation", "true_eocs": [ "EOC_VAMPVIRUS1" ] },
-                { "u_message": "Suddenly you feel your heart pounding and you realize a new ability." }
+                {
+                  "u_roll_remainder": [ "EYEGLEAM", "STAMINAFORBLOOD" ],
+                  "type": "mutation",
+                  "true_eocs": [ "EOC_VAMPVIRUS1", "EOC_SUCCESFUL_ROLL_REMAINDER" ],
+                  "false_eocs": [ "EOC_COMPLETED_ROLL_REMAINDER" ]
+                },
+                { "queue_eocs": "EOC_ADD_VAMPIRUS_INTENSITY1", "time_in_future": [ "5 days", "8 hours" ] }
               ],
               "false_effect": [
                 { "u_add_trait": "VAMPIRE" },
@@ -146,8 +176,13 @@
               "id": "eoc_vampvirus_2_trait",
               "condition": { "u_has_trait": "VAMPIRE2" },
               "effect": [
-                { "u_roll_remainder": [ "BLOODHEAL", "COAGULANTWEAVE" ], "type": "mutation", "true_eocs": [ "EOC_VAMPVIRUS2" ] },
-                { "u_message": "Suddenly you feel your heart slowing and you realize a new ability." }
+                {
+                  "u_roll_remainder": [ "BLOODHEAL", "COAGULANTWEAVE" ],
+                  "type": "mutation",
+                  "true_eocs": [ "EOC_VAMPVIRUS2" ],
+                  "false_eocs": [ "EOC_COMPLETED_ROLL_REMAINDER" ]
+                },
+                { "queue_eocs": "EOC_ADD_VAMPIRUS_INTENSITY2", "time_in_future": [ "5 days", "8 hours" ] }
               ],
               "false_effect": [
                 { "u_add_trait": "VAMPIRE2" },
@@ -171,7 +206,12 @@
               "id": "eoc_vampvirus_3_trait",
               "condition": { "u_has_trait": "VAMPIRE3" },
               "effect": [
-                { "u_roll_remainder": [ "BLOODHASTE", "HYPNOTIC_GAZE" ], "type": "mutation", "true_eocs": [ "EOC_VAMPVIRUS2" ] },
+                {
+                  "u_roll_remainder": [ "BLOODHASTE", "HYPNOTIC_GAZE" ],
+                  "type": "mutation",
+                  "true_eocs": [ "EOC_VAMPVIRUS2" ],
+                  "false_eocs": [ "EOC_COMPLETED_ROLL_REMAINDER" ]
+                },
                 {
                   "u_message": "You feel the absence of your heart beating for several seconds and then it resumes at this new rhythm."
                 }
@@ -179,7 +219,7 @@
               "false_effect": [
                 { "u_add_trait": "VAMPIRE3" },
                 {
-                  "u_message": "With a popping sound several of your teeth fall out but when you put a finger into your mouth to feel the hole, there are new sharp fangs where you expected nothing."
+                  "u_message": "You don't seem to feel as hungry as you were before and you definitely recover from exertion faster than before."
                 }
               ]
             }
@@ -195,7 +235,7 @@
     "recurrence": [ "8 hours", "14 hours 15 minutes" ],
     "condition": {
       "and": [
-        { "compare_num": [ { "u_val": "vitamin", "name": "blood" }, "<=", { "const": 450 } ] },
+        { "compare_num": [ { "u_val": "vitamin", "name": "human_blood_vitamin" }, "<=", { "const": -450 } ] },
         { "u_has_effect": "vampire_virus" }
       ]
     },
diff --git a/data/mods/Xedra_Evolved/encounters/jotunn_encounters.json b/data/mods/Xedra_Evolved/encounters/jotunn_encounters.json
index bc4d3a80ae087..2ea171c95ce52 100644
--- a/data/mods/Xedra_Evolved/encounters/jotunn_encounters.json
+++ b/data/mods/Xedra_Evolved/encounters/jotunn_encounters.json
@@ -56,7 +56,7 @@
     "object": {
       "place_monsters": [ { "monster": "GROUP_Exodii_Jotunn", "x": [ 3, 17 ], "y": [ 13, 15 ] } ],
       "place_vehicles": [ { "vehicle": "bearcub", "chance": 30, "status": -3, "x": [ 11 ], "y": [ 12 ] } ],
-      "place_corpses": [ { "group": "FERAL_AGENTS", "x": [ 7, 14 ], "y": [ 6, 18 ] } ]
+      "place_corpses": [ { "group": "GROUP_FERAL_AGENTS", "x": [ 7, 14 ], "y": [ 6, 18 ] } ]
     }
   },
   {
diff --git a/data/mods/Xedra_Evolved/mutations/mutations.json b/data/mods/Xedra_Evolved/mutations/mutations.json
index 2e473569a7254..968729d11a106 100644
--- a/data/mods/Xedra_Evolved/mutations/mutations.json
+++ b/data/mods/Xedra_Evolved/mutations/mutations.json
@@ -155,7 +155,7 @@
     "purifiable": false,
     "valid": false,
     "name": { "str": "Coagulant Weave" },
-    "description": "Your body prepares to prevent the lose of any blood to combat damage.",
+    "description": "Your body prepares to prevent the loss of any blood to combat damage.",
     "active": true,
     "activated_eocs": [ "EOC_COAGULANTWEAVE_activated" ]
   },
@@ -176,7 +176,7 @@
     "id": "VAMPIRE3",
     "name": { "str": "Mortal hungers are replaced with immortal hungers." },
     "points": 0,
-    "description": "You have developed a thirst for the blood of your fellow humans.",
+    "description": "You replace some of your regular caloric intake with blood and begin to see some of the more esoteric abilities inherent to vampirism.",
     "starting_trait": false,
     "purifiable": false,
     "valid": false,