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.
Roxanne, Starfall Savant
Sarulf, Realm Eater
Katara, the Fearless
Squee, the Immortal
Lovisa Coldeyes
Edgar, King of Figaro
Kediss, Emberclaw Familiar
Teval, the Balanced Scale
Witch-king, Sky Scourge
Leatherhead, Iron Gator
Rat King, Verminister
Gluntch, the Bestower
Mila, Crafty Companion // Lukka, Wayward Bonder
Agrus Kos, Eternal Soldier
Queen Kayla bin-Kroog
Nevinyrral, Urborg Tyrant
The Ninth Doctor
Kwia Vigorbloom
Omnath, Locus of Creation
Mizzix of the Izmagnus
Laughing Jasper Flint
Molecule Man
Ellie and Alan, Paleontologists
Satoru Umezawa