diff --git a/data/campaigns/Eastern_Invasion/utils/traits.cfg b/data/campaigns/Eastern_Invasion/utils/traits.cfg
index 066e1044c40..a3b95fc6f2a 100644
--- a/data/campaigns/Eastern_Invasion/utils/traits.cfg
+++ b/data/campaigns/Eastern_Invasion/utils/traits.cfg
@@ -116,27 +116,6 @@
     [/trait]
 #enddef
 
-#define RESIST_DAMAGE DAMAGE PERCENTAGE
-    [resistance]
-        affect_self=yes
-        [filter_self]
-            [filter_adjacent]
-                # ok, ok, yes, I know, this will trigger even if you're attacking non-undead as long as you're adjacent to undead.
-                # but that's such an unusual edge case, and I don't know how to filter this by enemy
-                trait=undead
-
-                [or]
-                    type_adv_tree=Dark Adept,Vampire Bat
-                [/or]
-            [/filter_adjacent]
-        [/filter_self]
-        [filter_second_weapon]
-            damage={DAMAGE}
-        [/filter_second_weapon]
-        add={PERCENTAGE}
-        max_value=100 # required by WML
-    [/resistance]
-#enddef
 #define TRAIT_SURVIVOR
     [trait]
         id=survivor