What type of card is Guest List?

Q: What type of card is Guest List?

Guest List is an Artifact — Contraption. Its oracle text reads: "Whenever you crank this Contraption, target creature gets -X/-X until end of turn, where X is the number of creature cards in its controller's graveyard."

Guest List

Artifact — Contraption

Whenever you crank this Contraption, target creature gets -X/-X until end of turn, where X is the number of creature cards in its controller's graveyard.

Set Unstable

Rarity Rare

Artist Franz Vohwinkel

Collector # 186

Scryfall Gatherer