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.
Avacyn, Angel of Horror
Bjorna, Nightfall Alchemist
Wernog, Rider's Chaplain
Alania, Divergent Storm
Raffine, Scheming Seer
The Notary Hobbits
Grizzlegom, Hurloon Hero
Valgavoth, Harrower of Souls
Kraum, Ludevic's Opus
Tymna the Weaver
Galazeth Prismari
Sigarda, Font of Blessings
T'Challa, the Black Panther
Ares, God of War
Sauron, the Dark Lord
Kellan, the Kid
Hashaton, Scarab's Fist
Abigale, Poet Laureate // Heroic Stanza
Massimo, the Magician
Uldaros Theorix
The Unbeatable Squirrel Girl
Slinza, the Spiked Stampede
Kuja, Genome Sorcerer // Trance Kuja, Fate Defied
Sin, Spira's Punishment
Omarthis, Ghostfire Initiate
Bello, Bard of the Brambles