diff --git a/pokedex/data/csv/move_changelog.csv b/pokedex/data/csv/move_changelog.csv
index 10301d3..3295924 100644
--- a/pokedex/data/csv/move_changelog.csv
+++ b/pokedex/data/csv/move_changelog.csv
@@ -1,12 +1,15 @@
 move_id,changed_in_version_group_id,type_id,power,pp,accuracy,priority,target_id,effect_id,effect_chance
 2,3,1,,,,,,,
 13,5,,,,75,,,,
+14,15,,,30,,,,,
 16,3,1,,,,,,1,
 17,3,,35,,,,,,
 18,3,,,,85,,,,
+18,15,,,,100,,,,
 19,8,,70,,,,,,
 20,11,,,,75,,,,
 22,8,,,10,,,,,
+22,15,,35,15,,,,,
 26,8,,70,,,,,,
 26,11,,85,25,,,,,
 28,3,1,,,,,,,
@@ -15,18 +18,29 @@ move_id,changed_in_version_group_id,type_id,power,pp,accuracy,priority,target_id
 37,11,,90,20,,,,,
 38,3,,100,,,,,49,
 40,3,,,,,,,,20
+42,15,,14,,85,,,,
 44,3,1,,,,,,,10
+46,15,,,,100,,,,
 50,8,,,,55,,,,
 50,11,,,,80,,,,
+53,15,,95,,,,,,
+56,15,,120,,,,,,
+57,15,,95,,,,,,
+58,15,,95,,,,,,
 59,3,,,,90,,,,
+59,15,,120,,,,,,
+66,15,,,25,,,,,
 67,5,,50,,90,,,32,30
 71,8,,,20,,,,,
 72,8,,,10,,,,,
 74,11,,,,,,,14,
+74,15,,,40,,,,,
 80,8,,70,,,,,,
 80,11,,90,20,,,,,
 83,11,,15,,70,,,,
+85,15,,95,,,,,,
 87,3,,,,,,,,10
+87,15,,120,,,,,,
 88,3,,,,65,,,,
 91,3,,100,,,,,,
 91,8,,60,,,,,,
@@ -35,49 +49,118 @@ move_id,changed_in_version_group_id,type_id,power,pp,accuracy,priority,target_id
 95,8,,,,60,,,,
 95,9,,,,70,,,,
 105,8,,,20,,,,,
+107,15,,,20,,,,,
+112,15,,,30,,,,,
 120,3,,130,,,,,,
+122,15,,20,,,,,,
+123,15,,20,,,,,,
 126,3,,,,,,,,30
+126,15,,120,,,,,,
 128,11,,,10,75,,,,
+130,15,,100,15,,,,,
 136,8,,85,,,,,,
 136,11,,100,20,,,,,
 137,11,,,,75,,,,
+137,15,,,,90,,,,
 139,11,,,,55,,,,
+139,15,,,,80,,,,
 143,3,,,,,,,,10
+145,15,,20,,,,,,
 146,3,,,,,,,1,0
 148,8,,,,70,,,,
+149,15,,,,80,,,,
+151,15,,,40,,,,,
 152,11,,,,85,,,,
+152,15,,90,,,,,,
 153,3,,170,,,,,,
 157,3,,,,,,,1,0
 161,3,,,,,,,1,0
+165,15,,,,,,10,,
+168,15,,40,10,,,,,
 170,11,,,40,,,,,
+173,15,,40,,,,,,
 174,11,10001,,,,,,,
 178,11,,,,85,,,,
+178,15,,,,,,10,,
 184,11,,,,90,,,,
+186,15,1,,,,,,,
 192,8,,100,,,,,,
+195,15,,,,,,12,,
 198,11,,,,80,,,,
 200,8,,90,,,,,,
 200,11,,,15,,,,,
 202,8,,,5,,,,,
 202,11,,60,,,,,,
+204,15,1,,,,,,,
 210,11,,10,,,,,,
+210,15,,20,,,,,,
+215,15,,,,,,4,,
+236,15,1,,,,,,,
+237,15,,1,,,,,,
 248,11,,80,15,90,,,,
+248,15,,100,,,,,,
 249,8,,20,,,,,,
 250,11,,15,,70,,,,
 251,11,,10,,,,,,
 253,11,,50,,,,,,
 254,8,,,10,,,,,
+257,15,,100,,,,,,
+261,15,,,,75,,,,
+265,15,,60,,,,,,
+266,15,,,,,3,,,
+267,15,,,,,,1,,
+282,15,,20,,,,,,
 291,8,,60,,,,,,
 294,11,,,,,,,54,
+305,15,,,,,,,,30
+309,15,,100,,85,,,,
+312,15,,,,,,4,,
+314,15,,55,,,,,,
+315,15,,140,,,,,,
+317,15,,50,10,80,,,,
+326,15,,,30,,,,,
 328,11,,15,,70,,,,
+330,15,,95,,,,,,
 331,11,,10,,,,,,
 333,11,,10,,,,,,
 343,11,,40,,,,,,
+343,15,,,40,,,,,
 348,8,,70,,,,,,
 350,11,,,,80,,,,
 353,11,,120,,85,,,,
+358,15,,60,,,,,,
 364,11,,50,,,,,,
+366,15,,,30,,,,,
+372,15,,50,,,,,,
+375,15,,,,90,,,,
 382,11,,0,,,,,,
 386,11,,60,,,,,,
 387,11,,130,,,,,,
+396,15,,90,,,,,,
+403,15,,,20,,,,,
+406,15,,90,,,,,,
+408,15,,70,,,,,,
 409,11,,60,5,,,,,
+412,15,,80,,,,,,
+434,15,,140,,,,,,
+437,15,,140,,,,,,
+441,15,,,,70,,,,
+448,15,,60,,,,,,
 463,11,,,,70,,,,
+463,15,,120,,,,,,
+472,15,,,,,-7,,,
+476,15,,,,,3,,,
+478,15,,,,,-7,,,
+480,15,,40,,,,,,
+485,15,,70,15,,,,,
+490,15,,60,,,,,,
+506,15,,50,,,,,,
+510,15,,30,,,,,,
+518,15,,50,,,,,,
+519,15,,50,,,,,,
+520,15,,50,,,,,,
+522,15,,30,,,,,,
+524,15,,40,,,,,,
+533,15,,,20,,,,,
+542,15,,120,,,,,,
+546,15,,85,,,,,,
diff --git a/scripts/update-move-changelogs.py b/scripts/update-move-changelogs.py
new file mode 100644
index 0000000..356113e
--- /dev/null
+++ b/scripts/update-move-changelogs.py
@@ -0,0 +1,58 @@
+from __future__ import print_function
+
+import csv
+import sys
+
+fields = ['type_id', 'power', 'pp', 'accuracy', 'priority', 'target_id', 'effect_id', 'effect_chance']
+
+def main():
+    old = csv.DictReader(open(sys.argv[1], 'rb'))
+    new = csv.DictReader(open(sys.argv[2], 'rb'))
+    version_group_id = int(sys.argv[3])
+
+    moves = {}
+
+    for row in new:
+        moves[row['id']] = row
+
+    for row in old:
+        if row['id'] not in moves:
+            print("move %d disappeared!", file=sys.stderr)
+            continue
+
+        oldmove = row
+        newmove = moves[row['id']]
+
+        if int(oldmove['id']) > 10000:
+            print("skipping shadow moves", file=sys.stderr)
+            continue
+
+        changed_fields = []
+        for field in fields:
+            if oldmove[field] == newmove[field]:
+                continue
+            if field == 'power' and oldmove['power'] in "01":
+                if newmove['power'] == "":
+                    # expected
+                    # we used to store variable-power moves as 0 or 1,
+                    # now we store NULL
+                    continue
+                else:
+                    print("%s: %s changed from %s to %s" % (oldmove['identifier'], field, oldmove[field], newmove[field]), file=sys.stderr)
+            if oldmove[field] == '':
+                print("%s: %s changed from NULL to %s" % (oldmove['identifier'], field, newmove[field]), file=sys.stderr)
+                continue
+            #print("%s: %s changed from %s to %s" % (oldmove['identifier'], field, oldmove[field], sql_list([newmove[field]])))
+            changed_fields.append(field)
+
+        if changed_fields:
+            print("INSERT INTO move_changelog (move_id, changed_in_version_group_id, %s) VALUES (%s, %s, %s); -- %s (%s)" %
+                (sql_list(changed_fields), row['id'], version_group_id,
+                 sql_list(map(oldmove.__getitem__, changed_fields)),
+                 oldmove['identifier'],
+                 sql_list(map(newmove.__getitem__, changed_fields))))
+
+def sql_list(values):
+    return ", ".join(x if x != "" else "NULL" for x in values)
+
+main()