Davy Jones, Ocean's Consort

When Davy Jones enters the battlefield choose
target artifact. Davy Jones is indestructible as
long as you control that artifact. Sacrifice Davy
Jones when that artifact leaves the battlefield.
When Davy Jones attacks, reveal cards from the
top of your library until you reveal a Kraken
creature, put it only the battlefield tapped and
attacking. Put the rest on the bottom of your
library in a random order.