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.
Saruman, the White Hand
Shelob, Child of Ungoliant
Blor the Impervious
Aragorn, the Uniter
Slicer, Hired Muscle // Slicer, High-Speed Antagonist
Gonti, Canny Acquisitor
Kroxa and Kunoros
Wort, the Raidmother
Avacyn, Angel of Horror
Maralen of the Mornsong
Zinnia, Valley's Voice
Ardbert, Warrior of Darkness
Kenrith, the Returned King
Carmen, Cruel Skymarcher
Tovolar, Dire Overlord // Tovolar, the Midnight Scourge
Tivit, Seller of Secrets
Jasmine Boreal of the Seven
Lorehold, the Historian
Karametra, God of Harvests
Wick, the Whorled Mind
Ertai, the Corrupted