These decks are shared by the community and already available to pick in any game lobby, so there's no need to clone one just to play it. Clone a deck only if you want to customize it or use it as a starting point for building your own.
Mazirek, Kraul Death Priest
Sen Triplets
Inspirit, Flagship Vessel
Zellix, Sanity Flayer
Haunted One
Nikya of the Old Ways
Davros, Dalek Creator
The Borg Queen
Evereth, Viceroy of Plunder
Zimone, Infinite Analyst
Betor, Ancestor's Voice
Torens, Fist of the Angels
Denzilore Fatehold
The Dalek Emperor
Elenda, Saint of Dusk
Ghoulcaller Gisa
Ghen, Arcanum Weaver
Valgavoth, Harrower of Souls
Orvar, the All-Form
Glarb, Calamity's Augur
Tam, the Possibility
The Lord of the Eagles
Silver Surfer, Galactus's Herald