Aside from the novelty of his creature type, Captain Howler has a lot going for him
So, whats the story behind these cards
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In addition, Library of Leng gave you the option of putting cards you discarded (due to some effect like Mind Rot or Malfegor) on the top of your library rather than letting them be sent to your graveyard
Thats a good dream, if not great strategy
The second and third levels may be a bit expensive for a deck that likely wants to be aggressive, but you really cant complain too much as an extra upside
