Quicksmith Spy

Creature — Human Artificer

When Quicksmith Spy enters the battlefield, target artifact you control gains ": Draw a card" for as long as you control Quicksmith Spy.

2/3

2017-02-09:
If Quicksmith Spy or the artifact leaves the battlefield while the card-drawing ability is on the stack, that ability resolves as normal.
2017-02-09:
If Quicksmith Spy leaves the battlefield, you no longer control it.
2017-02-09:
If another player gains control of Quicksmith Spy, the artifact will no longer have the card-drawing ability, even if you regain control of Quicksmith Spy.
2017-02-09:
If Quicksmith Spy leaves the battlefield while its ability is on the stack, the artifact never gains the card-drawing ability.