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.
Ayula, Queen Among Bears
The Ancient One
Storm, Force of Nature
Valgavoth, Harrower of Souls
Yurlok of Scorch Thrash
Grand Arbiter Augustin IV
Kenrith, the Returned King
Tannuk, Memorial Ensign
Iceman and Firestar
Itazura, Lingering Wick
Ultimate Green Goblin
Cult of Skaro
Urza, Lord High Artificer
Whtz, the Bibliophile
Selenia, the Cursed Heart
Angus Mackenzie
Garland, Royal Kidnapper
The Ur-Sphinx
Ghalta, Primal Hunger
Doctor Doom
Jill, Shiva's Dominant // Shiva, Warden of Ice
Shilgengar, Sire of Famine
Adrix and Nev, Twincasters
Lulu, Stern Guardian