Crysknife, Tooth of Shai-Hulud

Equip {1}
Equipped creature gains +2/+2, first strike and is considered to be a Fremen in addition to its other subtypes. Destroy this artifact when equipped creature leaves the battlefield.
It could only be one thing, Jessica knew, the fabled crysknife of Arrakis, the blade that had never been
taken off the planet, and was known only by rumor
and wild gossip