Other Merfolk creatures you control get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)
Colour identity Blue
In short
Master of the Pearl Trident has 4 listed printings; the most valuable is the printing from TSR at US$2.38 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
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