Magus of the Unseen
Masters Edition II — rare
Creature — Human Wizard
Magus of the Unseen rulings:
2008-10-01: You tap the artifact when you lose control of it for any reason — because Magus of the Unseen’s effect ends, or because a spell or ability causes another player to gain control of it.
2008-10-01: The artifact will gain haste whether or not it’s a creature. Of course, if it’s not a creature, haste will have no particular effect.
2004-10-04: You may target an untapped artifact with this ability.
2004-10-04: The artifact taps after returning to the opponent (if it is not already tapped), so any abilities triggered off it tapping happen at that time.