diff --git a/dbupdate.py b/dbupdate.py
index 310d532..87e4f89 100644
--- a/dbupdate.py
+++ b/dbupdate.py
@@ -8,3 +8,4 @@
     database = Database()
     database.init(DATABASE)
     database.executescript(sys.argv[1])
+    database.close()
diff --git a/domain/refdata.py b/domain/refdata.py
index 2ec9fb6..f2323cc 100644
--- a/domain/refdata.py
+++ b/domain/refdata.py
@@ -6,6 +6,7 @@
 from enum import Enum
 from collections import defaultdict, namedtuple
 from config import REF_DATA_DIR
+from domain.unknown import Unknown
 
 NON_HOME_CAPACITY = 15
 BUILD_TICKS = 12
@@ -122,6 +123,14 @@ def cost(self) -> dict:
     def offense(self) -> float:
         op = self._data['power']['offense']
         op += self.land_bonus('offense_from_land')
+        if self.has_perk('offense_raw_wizard_ratio'):
+            per_percent, max_bonus = self.get_perk('offense_raw_wizard_ratio')
+            if not isinstance(self.dom.cs, Unknown) and self.dom.cs['wpa']:
+                wpa = float(self.dom.cs['wpa'])
+                wpa_bonus = wpa * float(per_percent)
+                if wpa_bonus > float(max_bonus):
+                    wpa_bonus = float(max_bonus)
+                op += wpa_bonus
         return op
 
     @property
diff --git a/opsdata/schema-updates/update-1.1.sql b/opsdata/schema-updates/update-1.1.sql
new file mode 100644
index 0000000..b12581d
--- /dev/null
+++ b/opsdata/schema-updates/update-1.1.sql
@@ -0,0 +1,4 @@
+INSERT INTO SchemaVersion (timestamp, version) VALUES (DATETIME('now'), '1.1');
+
+/* Add wpa column to deal with Icekin OP calc */
+ALTER TABLE ClearSight ADD COLUMN wpa REAL;
diff --git a/opsdata/schema.py b/opsdata/schema.py
index 899f8c8..9116eab 100644
--- a/opsdata/schema.py
+++ b/opsdata/schema.py
@@ -229,7 +229,8 @@ def query_last_ops(db):
     'military_spies': 'status.military_spies|optional',
     'military_assassins': 'status.military_assassins|optional',
     'military_wizards': 'status.military_wizards|optional',
-    'military_archmages': 'status.military_archmages|optional'
+    'military_archmages': 'status.military_archmages|optional',
+    'wpa': 'status.wpa|optional'
 }