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Undercity Plague
Sorcery
Target player loses 1 life, discards a card, then sacrifices a permanent of their choice.
Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)
Rulings (11)
If you choose not to cast the copy, or you can’t cast it (perhaps because there are no legal targets available), the copy will cease to exist the next time state-based actions are performed. You won’t get a chance to cast the copy at a later time.
Apr 15, 2013
If another player gains control of the creature, that player will control the triggered ability. That player will create a copy of the encoded card and may cast it.
Apr 15, 2013
The copy of the card with cipher is created in and cast from exile.
Apr 15, 2013
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