All Slivers have "Whenever this permanent becomes the target of a spell an opponent controls, you may draw a card."
Colour identity Azorius
In short
Opaline Sliver has 2 listed printings; the most valuable is the Extended Art · Secret Lair printing from SLD at US$3.06 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
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