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.
Ayli, Eternal Pilgrim
Skysovereign, Consul Flagship
Mavren Fein, Dusk Apostle
Niv-Mizzet, Dracogenius
Ashad, the Lone Cyberman
Blind Seer
Geralf, Visionary Stitcher
Yorvo, Lord of Garenbrig
Aang, Swift Savior // Aang and La, Ocean's Fury
Satoru, the Infiltrator
Wan Shi Tong, Librarian
Judge Magister Gabranth
The Fabulous Frog-Man
Aang, Airbending Master
Alistair, the Brigadier
Goldbug, Humanity's Ally // Goldbug, Scrappy Scout
Melek, Reforged Researcher
Clement, the Worrywort
Jenara, Asura of War
Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel
Witch-king, Sky Scourge
Chatterfang, Squirrel General
Emrakul, the Promised End
Gandalf, Goblins' Bane // Flameshape