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.
Maular, the Next Evolution
Vivi Ornitier
Tony Stark // The Invincible Iron Man
Okoye, Mighty and Adored
Tourach, Dread Cantor
Caradora, Heart of Alacria
Queen Allenal of Ruadach
Kefka, Court Mage // Kefka, Ruler of Ruin
Shorikai, Genesis Engine
Nihiloor
Avatar Aang // Aang, Master of Elements
Nick Fury, Agent of S.H.I.E.L.D.
Ruxa, Patient Professor
Gisa and Geralf
Mazirek, Kraul Death Priest
Dwalin, Weaponmaster
Jeska, Thrice Reborn
Kodama of the East Tree
Korlash, Heir to Blackblade
Meng Huo, Barbarian King
Nicol Bolas, the Ravager // Nicol Bolas, the Arisen
Doctor Doom
The Serpent Society
Moseo, Vein's New Dean