Fifty Feet of Rope is a uncommon Artifact card from The List (PLST), collector number AFR-244. Current market price: $0.12, TCGplayer market prices via Scryfall.
Climb Over — {T}: Target Wall can't block this turn. Tie Up — {3}, {T}: Target creature doesn't untap during its controller's next untap step. Rappel Down — {4}, {T}: Venture into the dungeon. Activate only as a sorcery. (Enter the first room or advance to the next room.)