It costs nothing, obviously, and it can tap for one colorless mana
DSK Duskmourn: House of Horror 48 - Common - English EN Card Name Mana Cost Type Creature Shark Rarity Common rules Text VigilanceIslandcycling ( , Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.) Flavor Text Valgavoth's evil aura turned the shark from an apex predator into an inescapable terror of the deeps
Paired with cards like Narset, Parter of Veils or Sheoldred, the Apocalypse, this card does work
Unfortunately, this can only trigger once per turn, however, a card draw engine for one mana isnt to be scoffed at
Tireless Tracker Tireless Tracker gives green a great token producer and a little card draw
Wizards of the Coast has announced multiple product options for the set, including Play Booster Boxes, Collector Booster Boxes, Bundles, Gift Bundles, Draft Night boxes, Scene Boxes, and Prerelease Packs