Covetous Dragon

{4}{R} · Creature — Dragon

Flying When you control no artifacts, sacrifice this creature.

Motor: se resuelve a mano

Rulings (2)

The ability only checks if you control no artifacts at the time it triggers. It does not check again on resolution. So gaining control of an artifact before then will not save the Dragon.
Wizards of the Coast · 2004-10-04
The ability will trigger if you don’t control an artifact, even for a brief moment during the resolution of another spell or ability.
Wizards of the Coast · 2004-10-04