diff --git a/apps/openmw/mwmechanics/mechanicsmanager.cpp b/apps/openmw/mwmechanics/mechanicsmanager.cpp
index 00453eee5..414faa414 100644
--- a/apps/openmw/mwmechanics/mechanicsmanager.cpp
+++ b/apps/openmw/mwmechanics/mechanicsmanager.cpp
@@ -71,7 +71,7 @@ namespace MWMechanics
             for (std::vector<std::string>::const_iterator iter (race->powers.list.begin());
                 iter!=race->powers.list.end(); ++iter)
             {
-                creatureStats.mSpells.add (*iter, mEnvironment);
+                creatureStats.mSpells.add (*iter);
             }
         }
 
@@ -85,7 +85,7 @@ namespace MWMechanics
             for (std::vector<std::string>::const_iterator iter (sign->powers.list.begin());
                 iter!=sign->powers.list.end(); ++iter)
             {
-                creatureStats.mSpells.add (*iter, mEnvironment);
+                creatureStats.mSpells.add (*iter);
             }
         }
 
diff --git a/apps/openmw/mwmechanics/spells.cpp b/apps/openmw/mwmechanics/spells.cpp
index 2b28f0c2f..4e8c6fa5a 100644
--- a/apps/openmw/mwmechanics/spells.cpp
+++ b/apps/openmw/mwmechanics/spells.cpp
@@ -1,7 +1,7 @@
 
 #include "spells.hpp"
 
-#include <cassert>
+#include <components/esm/loadspel.hpp>
 
 #include "../mwworld/environment.hpp"
 #include "../mwworld/world.hpp"
@@ -21,57 +21,48 @@ namespace MWMechanics
         }
     }
 
-    Spells::TIterator Spells::begin (ESM::Spell::SpellType type) const
+    Spells::TIterator Spells::begin() const
     {
-        assert (type>=0 && type<sTypes);
-        return mSpells[type].begin();
+        return mSpells.begin();
     }
 
-    Spells::TIterator Spells::end (ESM::Spell::SpellType type) const
+    Spells::TIterator Spells::end() const
     {
-        assert (type>=0 && type<sTypes);
-        return mSpells[type].end();
+        return mSpells.end();
     }
 
-    void Spells::add (const std::string& spellId, MWWorld::Environment& environment)
+    void Spells::add (const std::string& spellId)
     {
-        const ESM::Spell *spell = environment.mWorld->getStore().spells.find (spellId);
-
-        int type = spell->data.type;
-
-        assert (type>=0 && type<sTypes);
-
-        if (std::find (mSpells[type].begin(), mSpells[type].end(), spell)!=mSpells[type].end())
-            mSpells[type].push_back (spell);
+        if (std::find (mSpells.begin(), mSpells.end(), spellId)!=mSpells.end())
+            mSpells.push_back (spellId);
     }
 
-    void Spells::remove (const std::string& spellId, MWWorld::Environment& environment)
+    void Spells::remove (const std::string& spellId)
     {
-        const ESM::Spell *spell = environment.mWorld->getStore().spells.find (spellId);
-
-        int type = spell->data.type;
+        TContainer::iterator iter = std::find (mSpells.begin(), mSpells.end(), spellId);
 
-        TContainer::iterator iter = std::find (mSpells[type].begin(), mSpells[type].end(), spell);
-
-        if (iter!=mSpells[type].end())
-            mSpells[type].erase (iter);
+        if (iter!=mSpells.end())
+            mSpells.erase (iter);
     }
 
-    MagicEffects Spells::getMagicEffects (MWWorld::Environment& environment) const
+    MagicEffects Spells::getMagicEffects (const MWWorld::Environment& environment) const
     {
         MagicEffects effects;
 
-        for (int i=ESM::Spell::ST_Ability; i<=ESM::Spell::ST_Curse; ++i)
-            for (TIterator iter (begin (static_cast<ESM::Spell::SpellType> (i)));
-                iter!=end(static_cast<ESM::Spell::SpellType> (i)); ++iter)
-                addSpell (*iter, effects);
+        for (TIterator iter = mSpells.begin(); iter!=mSpells.end(); ++iter)
+        {
+            const ESM::Spell *spell = environment.mWorld->getStore().spells.find (*iter);
+
+            if (spell->data.type==ESM::Spell::ST_Ability || spell->data.type==ESM::Spell::ST_Blight ||
+                spell->data.type==ESM::Spell::ST_Disease || spell->data.type==ESM::Spell::ST_Curse)
+                addSpell (spell, effects);
+        }
 
         return effects;
     }
 
     void Spells::clear()
     {
-        for (int i=0; i<sTypes; ++i)
-            mSpells[i].clear();
+        mSpells.clear();
     }
 }
diff --git a/apps/openmw/mwmechanics/spells.hpp b/apps/openmw/mwmechanics/spells.hpp
index fb25c84a5..4c5f21d35 100644
--- a/apps/openmw/mwmechanics/spells.hpp
+++ b/apps/openmw/mwmechanics/spells.hpp
@@ -1,9 +1,13 @@
 #ifndef GAME_MWMECHANICS_SPELLS_H
 #define GAME_MWMECHANICS_SPELLS_H
 
-#include <components/esm/loadspel.hpp>
-
 #include <vector>
+#include <string>
+
+namespace ESM
+{
+    struct Spell;
+}
 
 namespace MWWorld
 {
@@ -22,29 +26,27 @@ namespace MWMechanics
     {
         public:
 
-            typedef std::vector<const ESM::Spell *> TContainer;
+            typedef std::vector<std::string> TContainer;
             typedef TContainer::const_iterator TIterator;
 
         private:
 
-            static const int sTypes = 6;
-
-            std::vector<const ESM::Spell *> mSpells[sTypes];
+            std::vector<std::string> mSpells;
 
             void addSpell (const ESM::Spell *, MagicEffects& effects) const;
 
         public:
 
-            TIterator begin (ESM::Spell::SpellType type) const;
+            TIterator begin() const;
 
-            TIterator end (ESM::Spell::SpellType type) const;
+            TIterator end() const;
 
-            void add (const std::string& spell, MWWorld::Environment& environment);
+            void add (const std::string& spell);
             /// \note Adding a spell that is already listed in *this is a no-op.
 
-            void remove (const std::string& spell, MWWorld::Environment& environment);
+            void remove (const std::string& spell);
 
-            MagicEffects getMagicEffects (MWWorld::Environment& environment) const;
+            MagicEffects getMagicEffects (const MWWorld::Environment& environment) const;
             ///< Return sum of magic effects resulting from abilities, blights, deseases and curses.
 
             void clear();