Complex sentence: Lisa is taken back home by the Toymaster, revealed to be Santa Claus, in a sleigh with wooden reindeer, across the Milky Way until she wakes up at home as though it had all been a dream.
Split into simpler sentences: Lisa is taken home by the Toymaster-who is revealed to be Santa Claus-in a sleigh with wooden reindeer. They travel across the Milky Way until she wakes up at home, as though it had all been a dream.