What type of card is Kindslaver?

Q: What type of card is Kindslaver?

Kindslaver is a Legendary Artifact. Its oracle text reads: "{5}, {T}, Sacrifice Kindslaver: A person outside the game controls target player during that player's next turn. Neither player may advise that person until the end of that turn."

Kindslaver

Legendary Artifact

, , Sacrifice Kindslaver: A person outside the game controls target player during that player's next turn. Neither player may advise that person until the end of that turn.