Enchantment Creature — Minotaur Shaman
5/4
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Dreamshaper Shaman can be sacrificed to pay for the cost of its own triggered ability.
While resolving Dreamshaper Shaman's ability, you can't pay 
more than once or sacrifice multiple permanents.
You can't pay and not sacrifice a nonland permanent, or vice versa. The cost must be paid in full or not at all.
If there are no nonland cards remaining in your library, you just randomize your library and continue playing.
and sacrifice a nonland permanent. If you do, reveal cards from the top of your library until you reveal a nonland permanent card. Put that card onto the battlefield and the rest on the bottom of your library in a random order.