Thanos, Death's Thrall

Menace
When Thanos, Death's Thrall enters the
battlefield search your library for {x} artifacts,
shuffle then put those cards on the top of your
library.
If you control 6 or more Legendary artifacts
Thanos has Indestructible.
"Even devils should beware when dealing with
Thanos Of Titan"—Thanos to Mephisto