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.
Beorn the Fierce
Lyna, Veil of Vengeance
Sauron, Lord of the Rings
Omnath, Locus of All
Bruenor Battlehammer
Susan Foreman
The War Doctor
Nahiri, Forged in Fury
Nevinyrral, Urborg Tyrant
Sek'Kuar, Deathkeeper
Desmond Miles
Mortarion, Daemon Primarch
Niv-Mizzet, Ghost Counsel
Toxrill, the Corrosive
Aang and Katara
Alexios, Deimos of Kosmos
Minsc, Beloved Ranger
Vial Smasher the Fierce
Malcolm, Keen-Eyed Navigator
Vivi Ornitier
Gluntch, the Bestower
Sokrates, Athenian Teacher
Tariel, Reckoner of Souls
Atraxa, Praetors' Voice
Reaper King