Board Thread:Character Discussion/@comment-26151936-20150311162054/@comment-25355646-20150312002324

The Sorcerer can't have dark magic. If he does, then A&E are going against their own rules. In 1x22, Rumple said that true love (light magic) is the only magic powerful enough to transcend realms. This means that only light magic can create portals to other worlds. And the Sorcerer created a doorway to Earth in 4x08. But, the Sorcerer could have light magic and use it for evil (kinda like Emma might do in the upcoming episodes).