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.
Zagorka, Mother of Sanctum
Sheoldred // The True Scriptures
Alora, Merry Thief
The Council of Four
Ognis, the Dragon's Lash
Gisa and Geralf
Baron Helmut Zemo
Blech, Loafing Pest
Olivia, Crimson Bride
Nicol Bolas, the Ravager // Nicol Bolas, the Arisen
Mageta the Lion
Lathiel, the Bounteous Dawn
Hope Estheim
Kaalia of the Vast
Thrasios, Triton Hero
Kydele, Chosen of Kruphix
Ingris Stingerquill
Vivi Ornitier
Niv-Mizzet, Ghost Counsel
Worzel, the Protector
Phelddagrif
Arcades, the Strategist