13 cards where the card is tagged “gating”

Cavern Harpy (Planeshift #97)
Doomsday Specter (Planeshift #103)
Fleetfoot Panther (Duel Decks: Ajani vs. Nicol Bolas #12)
Horned Kavu (Planeshift #110)
Lava Zombie (Planeshift #113)
Marsh Crocodile (Planeshift #115)
Natural Emergence (Planeshift #117)
Razing Snidd (Planeshift #121)
Sawtooth Loon (Dominaria Remastered #199)
Shivan Wurm (Vintage Masters #261)
Silver Drake (Planeshift #125)
Sparkcaster (Planeshift #126)
Steel Leaf Paladin (Planeshift #127)

Though this query has ended, its relics still slumber in New Argive.