Goblinslide is a uncommon Enchantment card from Khans of Tarkir (KTK), collector number 109. Current market price: $0.24 (foil $0.70), TCGplayer market prices via Scryfall.
Whenever you cast a noncreature spell, you may pay {1}. If you do, create a 1/1 red Goblin creature token with haste.