diff --git a/decode.py b/decode.py
index e6a1516..c89e2c4 100755
--- a/decode.py
+++ b/decode.py
@@ -1,6 +1,8 @@
 #!/usr/bin/env python
 import sys
 import os
+import zipfile
+import shutil
 
 libdir = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'lib')
 sys.path.append(libdir)
@@ -14,7 +16,8 @@ def exclude_sets(cardset):
     return cardset == 'Unglued' or cardset == 'Unhinged' or cardset == 'Celebration'
 
 def main(fname, oname = None, verbose = True, 
-         gatherer = False, for_forum = False, creativity = False, norarity = False):
+         gatherer = False, for_forum = False, for_mse = False,
+         creativity = False, norarity = False):
     cards = []
     valid = 0
     invalid = 0
@@ -107,9 +110,19 @@ def main(fname, oname = None, verbose = True,
         namediff = Namediff()
 
     def writecards(writer):
+        if for_mse:
+            # have to prepend a massive chunk of formatting info
+            writer.write(utils.mse_prepend)
         for card in cards:
-            writer.write((card.format(gatherer = gatherer, for_forum = for_forum)).encode('utf-8'))
+            if for_mse:
+                 writer.write(card.to_mse().encode('utf-8'))
+            else:
+                writer.write(card.format(gatherer = gatherer, 
+                                         for_forum = for_forum).encode('utf-8'))
+
             if creativity:
+                if for_mse:
+                    writer.write('\tnotes:\n\t\t'.encode('utf-8'))
                 writer.write('~~ closest cards ~~\n'.encode('utf-8'))
                 nearest = cbow.nearest(card)
                 for dist, cardname in nearest:
@@ -126,11 +139,31 @@ def main(fname, oname = None, verbose = True,
                     writer.write((cardname + ': ' + str(dist) + '\n').encode('utf-8'))
             writer.write('\n'.encode('utf-8'))
 
+        if for_mse:
+            # more formatting info
+            writer.write('version control:\n\ttype: none\napprentice code: ')
+
     if oname:
         if verbose:
             print 'Writing output to: ' + oname
         with open(oname, 'w') as ofile:
             writecards(ofile)
+        if for_mse:
+            # Copy whatever output file is produced, name the copy 'set' (yes, no extension).
+            if os.path.isfile('set'):
+                print 'ERROR: tried to overwrite existing file "set" - aborting.'
+                return
+            shutil.copyfile(oname, 'set')
+            # Use the freaky mse extension instead of zip.
+            with zipfile.ZipFile(oname+'.mse-set', mode='w') as zf:
+                try:
+                    # Zip up the set file into oname.mse-set.
+                    zf.write('set') 
+                finally:
+                    if verbose:
+                        print 'Made an MSE set file called ' + oname + '.mse-set.'
+                    # The set file is useless outside the .mse-set, delete it.
+                    os.remove('set') 
     else:
         writecards(sys.stdout)
         sys.stdout.flush()
@@ -154,9 +187,10 @@ if __name__ == '__main__':
                         help='the card format has no rarity field; use for legacy input')
     parser.add_argument('-v', '--verbose', action='store_true', 
                         help='verbose output')
+    parser.add_argument('-mse', '--mse', action='store_true', help='use Magic Set Editor 2 encoding; will output as .mse-set file')
     
     args = parser.parse_args()
     main(args.infile, args.outfile, verbose = args.verbose, 
-         gatherer = args.gatherer, for_forum = args.forum, creativity = args.creativity,
-         norarity = args.norarity)
+         gatherer = args.gatherer, for_forum = args.forum, for_mse = args.mse,
+         creativity = args.creativity, norarity = args.norarity)
     exit(0)
diff --git a/lib/cardlib.py b/lib/cardlib.py
index 718155a..4b88cb7 100644
--- a/lib/cardlib.py
+++ b/lib/cardlib.py
@@ -17,6 +17,11 @@ try:
     import textwrap
     import nltk.data
     sent_tokenizer = nltk.data.load('tokenizers/punkt/english.pickle')
+    # This could me made smarter - MSE will capitalize for us after :,
+    # but we still need to capitalize the first english component of an activation
+    # cost that starts with symbols, such as {2U}, *R*emove a +1/+1 counter from @: etc.
+    def cap(s):
+        return s[:1].capitalize() + s[1:]
     # This crazy thing is actually invoked as an unpass, so newlines are still
     # encoded.
     def sentencecase(s):
@@ -26,11 +31,26 @@ try:
         for line in lines:
             if line:
                 sentences = sent_tokenizer.tokenize(line)
-                clines += [' '.join([sent.capitalize() for sent in sentences])]
+                clines += [' '.join([cap(sent) for sent in sentences])]
         return utils.newline.join(clines).replace(utils.reserved_marker, utils.x_marker)
 except ImportError:
+    # non-nltk implementation provided by PAK90
+    def uppercaseNewLineAndFullstop(string):
+        # ok, let's capitalize every letter after a full stop and newline. 
+        # first let's find all indices of '.' and '\n'
+        indices = [0] # initialise with 0, since we always want to capitalise the first letter.
+        newlineIndices = [0] # also need to keep track of pure newlines (for planeswalkers).
+        for i in range (len(string)):
+            if string[i] == '\\':
+                indices.append(i + 1) # we want the index of the letter after the \n, so add one.
+                newlineIndices.append(i + 1)
+            if string[i] == '.' or string[i] == "=": # also handle the choice bullets.
+                indices.append(i + 2) # we want the index of the letter after the ., so we need to count the space as well.
+        indexSet = set(indices) # convert it to a set for the next part; the capitalisation.
+        return "".join(c.upper() if i in indexSet else c for i, c in enumerate(string))
+
     def sentencecase(s):
-        return s
+        return uppercaseNewLineAndFullstop(s)
 
 # These are used later to determine what the fields of the Card object are called.
 # Define them here because they have nothing to do with the actual format.
@@ -109,6 +129,7 @@ def fields_check_valid(fields):
     else:
         return not field_pt in fields
 
+
 # These functions take a bunch of source data in some format and turn
 # it into nicely labeled fields that we know how to initialize a card from.
 # Both return a dict that maps field names to lists of possible values,
@@ -141,7 +162,7 @@ def fields_check_valid(fields):
 # layout - string
 # rarity - string
 # flavor - string
-# artis - string
+# artist - string
 # number - string
 # multiverseid - number
 # variations - list
@@ -530,7 +551,7 @@ class Card:
 
         return outstr
 
-    def format(self, gatherer = False, for_forum = False):
+    def format(self, gatherer = False, for_forum = False, for_mse = False):
         outstr = ''
         if gatherer:
             cardname = titlecase(self.__dict__[field_name])
@@ -663,6 +684,111 @@ class Card:
 
         return outstr
     
+    def to_mse(self):
+        outstr = ''
+
+        # need a 'card' string first
+        outstr += 'card:\n'
+
+        cardname = titlecase(self.__dict__[field_name])
+        outstr += '\tname: ' + cardname + '\n'
+
+        if self.__dict__[field_rarity]:
+            if self.__dict__[field_rarity] in utils.json_rarity_unmap:
+                rarity = utils.json_rarity_unmap[self.__dict__[field_rarity]]
+            else:
+                rarity = self.__dict__[field_rarity]
+            outstr += '\trarity: ' + rarity.lower() + '\n'
+        #if not self.parsed:
+        #    outstr += ' _UNPARSED_'
+        #if not self.valid:
+        #    outstr += ' _INVALID_'
+
+        if not self.__dict__[field_cost].none:            
+            outstr += '\tcasting cost: ' + self.__dict__[field_cost].format().replace('{','').replace('}','')
+            outstr += '\n'
+
+        outstr += '\tsuper type: ' + ' '.join(self.__dict__[field_supertypes] 
+                                              + self.__dict__[field_types]).title() + '\n'
+        if self.__dict__[field_subtypes]:
+            outstr += '\tsub type: ' + ' '.join(self.__dict__[field_subtypes]).title() + '\n'
+
+        if self.__dict__[field_text].text:
+            mtext = self.__dict__[field_text].text
+            mtext = transforms.text_unpass_1_choice(mtext, delimit = False)
+            mtext = transforms.text_unpass_2_counters(mtext)
+            mtext = transforms.text_unpass_3_unary(mtext)
+            mtext = transforms.text_unpass_4_symbols(mtext, False)
+            mtext = sentencecase(mtext)
+            # I don't really want these MSE specific passes in transforms,
+            # but they could be pulled out separately somewhere else in here.
+            mtext = mtext.replace(utils.this_marker, '<atom-cardname><nospellcheck>'
+                                  + utils.this_marker + '</nospellcheck></atom-cardname>')
+            mtext = transforms.text_unpass_5_cardname(mtext, cardname)
+            mtext = transforms.text_unpass_6_newlines(mtext)
+            newtext = Manatext('')
+            newtext.text = mtext
+            newtext.costs = self.__dict__[field_text].costs
+            newtext = newtext.format()
+
+            #NOT NEEDED newtext = newtext.replace(utils.this_marker, cardname) # first let's put the cardname where all the @s are.
+
+
+            # newtext = newtext.replace(utils.counter_rename + ".", "countered.") # then replace any 'uncast' at the end of a sentence with 'countered'.
+            # newtext = newtext.replace(utils.dash_marker, u'\u2014') # also replace the ~ with a u2014 for choices.
+            # newtext = newtext.replace(utils.counter_rename, "counter") # then replace all the mid-sentence 'uncast' with 'counter'.
+            # newtext = newtext.replace('{','<sym-auto>').replace('}','</sym-auto>') # now we encase mana/tap symbols with the correct tags for mse.
+            # linecount = newtext.count('\n') + 1 # adding 1 because no newlines means 1 line, 1 newline means 2 lines etc.
+
+            # newtext = sentencecase(newtext) # make all the things uppercase!
+
+            # # done after uppercasing everything because string[i] == u2022 doesn't work apparently.
+            # newtext = newtext.replace(utils.bullet_marker, u'\u2022') # replace the = with a u2022. 
+
+            # used later
+            linecount = newtext.count('\n') + 1 # adding 1 because no newlines means 1 line, 1 newline means 2 lines etc.
+
+            # actually really important
+            newtext = newtext.replace('{','<sym-auto>').replace('}','</sym-auto>') # now we encase mana/tap symbols with the correct tags for mse.
+
+            newlineIndices = [0] # also need to keep track of pure newlines (for planeswalkers).
+            for i in range (len(newtext)):
+                if  newtext[i] == '\n':
+                    newlineIndices.append(i + 1)
+
+            # need to do Special Things if it's a planeswalker.
+            if "planeswalker" in str(self.__dict__[field_types]): # for some reason this is in types, not supertypes...
+                outstr += '\tstylesheet: m15-planeswalker\n' # set the proper card style for a 3-line walker.
+
+                # set up the loyalty cost fields using regex to find how many there are.
+                i = 0
+                lcost_regex = r'[-+]?\d+: ' # 1+ figures, might be 0.
+                for costs in re.findall(lcost_regex, newtext):
+                    i += 1
+                    outstr += '\tloyalty cost ' + str(i) + ': ' + costs + '\n'
+                # sub out the loyalty costs.
+                newtext = re.sub(lcost_regex, '', newtext)
+
+                #newtext = sentencecase(newtext) # we need to uppercase again; previous uppercase call didn't work due to loyalty costs being there.
+
+                if self.__dict__[field_loyalty]:
+                    outstr += '\tloyalty: ' + utils.from_unary(self.__dict__[field_loyalty]) + '\n'
+
+            newtext = newtext.replace('\n','\n\t\t')
+            outstr += '\trule text:\n\t\t' + newtext + '\n'
+
+        if self.__dict__[field_pt]:
+            ptstring = utils.from_unary(self.__dict__[field_pt]).split('/')
+            if (len(ptstring) > 1): #really don't want to be accessing anything nonexistent.
+                outstr += '\tpower: ' + ptstring[0] + '\n'
+                outstr += '\ttoughness: ' + ptstring[1] + '\n'
+            #outstr += '\n'
+
+        # now append all the other useless fields that the setfile expects.
+        outstr += '\thas styling: false\n\tnotes:\n\ttime created:2015-07-20 22:53:07\n\ttime modified:2015-07-20 22:53:08\n\textra data:\n\timage:\n\tcard code text:\n\tcopyright:\n\timage 2:\n\tcopyright 2: '
+
+        return outstr
+
     def vectorize(self):
         ld = '('
         rd = ')'
diff --git a/lib/utils.py b/lib/utils.py
index bf51e6a..a2fc877 100644
--- a/lib/utils.py
+++ b/lib/utils.py
@@ -6,6 +6,9 @@ import re
 
 import config
 
+# special chunk of text that Magic Set Editor 2 requires at the start of all set files.
+mse_prepend = 'mse version: 0.3.8\ngame: magic\nstylesheet: m15\nset info:\n\tsymbol:\nstyling:\n\tmagic-m15:\n\t\ttext box mana symbols: magic-mana-small.mse-symbol-font\n\t\toverlay:\n\tmagic-m15-clear:\n\t\ttext box mana symbols: magic-mana-small.mse-symbol-font\n\t\toverlay: \n\tmagic-m15-extra-improved:\n\t\ttext box mana symbols: magic-mana-small.mse-symbol-font\n\t\tpt box symbols: magic-pt-symbols-extra.mse-symbol-font\n\t\toverlay: \n\tmagic-m15-planeswalker:\n\t\ttext box mana symbols: magic-mana-small.mse-symbol-font\n\t\toverlay: \n\tmagic-m15-planeswalker-promo-black:\n\t\ttext box mana symbols: magic-mana-small.mse-symbol-font\n\t\toverlay: \n\tmagic-m15-promo-dka:\n\t\ttext box mana symbols: magic-mana-small.mse-symbol-font\n\t\toverlay: \n\tmagic-m15-token-clear:\n\t\ttext box mana symbols: magic-mana-small.mse-symbol-font\n\t\toverlay: \n\tmagic-new-planeswalker:\n\t\ttext box mana symbols: magic-mana-small.mse-symbol-font\n\t\toverlay: \n\tmagic-new-planeswalker-4abil:\n\t\ttext box mana symbols: magic-mana-small.mse-symbol-font\n\t\toverlay: \n\tmagic-new-planeswalker-clear:\n\t\ttext box mana symbols: magic-mana-small.mse-symbol-font\n\t\toverlay: \n\tmagic-new-planeswalker-promo-black:\n\t\ttext box mana symbols: magic-mana-small.mse-symbol-font\n\t\toverlay: \n'
+
 # separators
 cardsep = config.cardsep
 fieldsep = config.fieldsep