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.
Iron Spider, Stark Upgrade
Akim, the Soaring Wind
Kirol, Attentive First-Year
Zimone and Dina
Thrun, Breaker of Silence
Sméagol, Helpful Guide
Nekusar, the Mindrazer
Geist of Saint Thalia
Light-Paws, Emperor's Voice
Haldan, Avid Arcanist
Pako, Arcane Retriever
Willowdusk, Essence Seer
Hallar, the Firefletcher
Nikya of the Old Ways
Yawgmoth, Thran Physician
Kefka, Court Mage // Kefka, Ruler of Ruin
Vivi Ornitier
Sauron, the Necromancer
Nadaar, Selfless Paladin
The Jolly Balloon Man
Sefris of the Hidden Ways
Phenax, God of Deception
The Ur-Dragon
Miirym, Sentinel Wyrm