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.
Anax and Cymede
Koth, the Geomancer
Blor the Impervious
Thantis, the Warweaver
Samut, Hazoret's Champion
Redshift, Rocketeer Chief
Eluge, the Shoreless Sea
Ovika, Enigma Goliath
Sisay, Weatherlight Captain
Heartless Hidetsugu
Sergeant John Benton
Vishgraz, the Doomhive
Sek'Kuar, Deathkeeper
Torgaar, Famine Incarnate
Mina and Denn, Wildborn
Silver Surfer, Galactus's Herald
Ashling, the Limitless
Fire Lord Zuko
Ulamog, the Ceaseless Hunger
The Sentry, Golden Guardian
Wraith, Vicious Vigilante
Sakashima of a Thousand Faces
Inga and Esika
Thranduil, the Elvenking