Hoarding Dragon

Flying
When this creature enters, you may search your library for an artifact card, exile it, then shuffle.
When this creature dies, you may put the exiled card into its owner's hand.

Foundations

Commander Masters

Flying
When Hoarding Dragon enters the battlefield, you may search your library for an artifact card, exile it, then shuffle.
When Hoarding Dragon dies, you may put the exiled card into its owner's hand.

The List

Iconic Masters

Flying
When Hoarding Dragon enters the battlefield, you may search your library for an artifact card, exile it, then shuffle your library.
When Hoarding Dragon dies, you may put the exiled card into its owner's hand.

Magic 2015

Hoarding Dragon's last two abilities are linked. The third ability refers only to the card exiled by Hoarding Dragon's second ability. In other words, each Dragon has its own hoard.

If Hoarding Dragon dies before its second ability resolves, its third ability will trigger and do nothing. Then its second ability will resolve. If you choose to exile an artifact card from your library, it will be exiled indefinitely.

The artifact card you find is exiled face up. All players can see what it is.