diff --git a/app/blueprints/api/v1/collection_weapon_blueprint.rb b/app/blueprints/api/v1/collection_weapon_blueprint.rb
index 837907a..8892863 100644
--- a/app/blueprints/api/v1/collection_weapon_blueprint.rb
+++ b/app/blueprints/api/v1/collection_weapon_blueprint.rb
@@ -7,10 +7,28 @@ module Api
              :created_at, :updated_at
 
       field :ax, if: ->(_, obj, _) { obj.ax_modifier1.present? } do |obj|
-        [
-          { modifier: obj.ax_modifier1, strength: obj.ax_strength1 },
-          { modifier: obj.ax_modifier2, strength: obj.ax_strength2 }
-        ].compact_blank
+        skills = []
+        if obj.ax_modifier1.present?
+          skills << {
+            modifier: WeaponStatModifierBlueprint.render_as_hash(obj.ax_modifier1),
+            strength: obj.ax_strength1
+          }
+        end
+        if obj.ax_modifier2.present?
+          skills << {
+            modifier: WeaponStatModifierBlueprint.render_as_hash(obj.ax_modifier2),
+            strength: obj.ax_strength2
+          }
+        end
+        skills
+      end
+
+      field :befoulment, if: ->(_, obj, _) { obj.befoulment_modifier.present? } do |obj|
+        {
+          modifier: WeaponStatModifierBlueprint.render_as_hash(obj.befoulment_modifier),
+          strength: obj.befoulment_strength,
+          exorcism_level: obj.exorcism_level
+        }
       end
 
       field :awakening, if: ->(_, obj, _) { obj.awakening.present? } do |obj|
diff --git a/app/blueprints/api/v1/grid_weapon_blueprint.rb b/app/blueprints/api/v1/grid_weapon_blueprint.rb
index a754059..55cca3e 100644
--- a/app/blueprints/api/v1/grid_weapon_blueprint.rb
+++ b/app/blueprints/api/v1/grid_weapon_blueprint.rb
@@ -15,11 +15,29 @@ module Api
       end
 
       view :nested do
-        field :ax, if: ->(_field_name, w, _options) { w.weapon.present? && w.weapon.ax } do |w|
-          [
-            { modifier: w.ax_modifier1, strength: w.ax_strength1 },
-            { modifier: w.ax_modifier2, strength: w.ax_strength2 }
-          ]
+        field :ax, if: ->(_field_name, w, _options) { w.ax_modifier1.present? } do |w|
+          skills = []
+          if w.ax_modifier1.present?
+            skills << {
+              modifier: WeaponStatModifierBlueprint.render_as_hash(w.ax_modifier1),
+              strength: w.ax_strength1
+            }
+          end
+          if w.ax_modifier2.present?
+            skills << {
+              modifier: WeaponStatModifierBlueprint.render_as_hash(w.ax_modifier2),
+              strength: w.ax_strength2
+            }
+          end
+          skills
+        end
+
+        field :befoulment, if: ->(_field_name, w, _options) { w.befoulment_modifier.present? } do |w|
+          {
+            modifier: WeaponStatModifierBlueprint.render_as_hash(w.befoulment_modifier),
+            strength: w.befoulment_strength,
+            exorcism_level: w.exorcism_level
+          }
         end
 
         field :awakening, if: ->(_field_name, w, _options) { w.awakening.present? } do |w|
diff --git a/app/blueprints/api/v1/weapon_blueprint.rb b/app/blueprints/api/v1/weapon_blueprint.rb
index 9d10027..4c12cf3 100644
--- a/app/blueprints/api/v1/weapon_blueprint.rb
+++ b/app/blueprints/api/v1/weapon_blueprint.rb
@@ -27,7 +27,7 @@ module Api
             },
             has_weapon_keys: w.weapon_series.has_weapon_keys,
             has_awakening: w.weapon_series.has_awakening,
-            has_ax_skills: w.weapon_series.has_ax_skills,
+            augment_type: w.weapon_series.augment_type,
             extra: w.weapon_series.extra,
             element_changeable: w.weapon_series.element_changeable
           }
diff --git a/app/blueprints/api/v1/weapon_series_blueprint.rb b/app/blueprints/api/v1/weapon_series_blueprint.rb
index ab18d5d..f73691b 100644
--- a/app/blueprints/api/v1/weapon_series_blueprint.rb
+++ b/app/blueprints/api/v1/weapon_series_blueprint.rb
@@ -11,7 +11,7 @@ module Api
       end
 
       fields :slug, :order, :extra, :element_changeable, :has_weapon_keys,
-             :has_awakening, :has_ax_skills
+             :has_awakening, :augment_type
 
       view :full do
         field :weapon_count do |ws|
diff --git a/app/blueprints/api/v1/weapon_stat_modifier_blueprint.rb b/app/blueprints/api/v1/weapon_stat_modifier_blueprint.rb
new file mode 100644
index 0000000..6b1e2e0
--- /dev/null
+++ b/app/blueprints/api/v1/weapon_stat_modifier_blueprint.rb
@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+module Api
+  module V1
+    class WeaponStatModifierBlueprint < Blueprinter::Base
+      identifier :id
+      fields :slug, :name_en, :name_jp, :category, :stat, :polarity, :suffix
+    end
+  end
+end