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.
Smaug the Magnificent
Aesi, Tyrant of Gyre Strait
Alena, Kessig Trapper
Gilanra, Caller of Wirewood
Queza, Augur of Agonies
Dosan the Falling Leaf
Aang, at the Crossroads // Aang, Destined Savior
Codie, Ravenous Codex
Rakdos, Lord of Riots
Niv-Mizzet, Ghost Counsel
Auntie Ool, Cursewretch
Marvin, Murderous Mimic
Karona, False God
Yuna, Grand Summoner
Sedris, the Traitor King
Dr. Beverly Crusher
Szarekh, the Silent King
The Swarmlord
Zurgo Helmsmasher
Jin-Gitaxias // The Great Synthesis
Fire Lord Azula
Tam, the Possibility
Kenrith, the Returned King
Rograkh, Son of Rohgahh
Thrasios, Triton Hero
Spiders-Man, Heroic Horde