Here are some best Clone Decks:

Archer Queen Giant Skeleton Deck

Arrows
Arrows
Clone
Clone
Lava Hound
Lava Hound
Mega Minion
Mega Minion
Minions
Minions
Night Witch
Night Witch
Skeleton Barrel
Skeleton Barrel
Tombstone
Tombstone
Elixir
Avg. Elixir
3.6
COPY DECK

Mighty Miner Wall Breakers Deck

Bats
Bats
Clone
Clone
Royal Ghost
Royal Ghost
Giant Skeleton
Giant Skeleton
Guards
Guards
Inferno Dragon
Inferno Dragon
Skeleton Barrel
Skeleton Barrel
Zap
Zap
Elixir
Avg. Elixir
3.4
COPY DECK

Royal Ghost Magic Archer Deck

Baby Dragon
Baby Dragon
Bats
Bats
Clone
Clone
Flying Machine
Flying Machine
Lava Hound
Lava Hound
Lumberjack
Lumberjack
Skeleton Army
Skeleton Army
Zap
Zap
Elixir
Avg. Elixir
3.6
COPY DECK

Archer Queen Battle Ram Deck

Arrows
Arrows
Tesla
Tesla
Minion Horde
Minion Horde
Clone
Clone
Skeleton Army
Skeleton Army
Goblin Barrel
Goblin Barrel
Giant Skeleton
Giant Skeleton
Sparky
Sparky
Elixir
Avg. Elixir
4.1
COPY DECK

Mighty Miner Skeleton King Deck

Bats
Bats
Clone
Clone
Flying Machine
Flying Machine
Giant Skeleton
Giant Skeleton
The Log
The Log
Skeleton Army
Skeleton Army
Skeleton King
Skeleton King
Skeleton Barrel
Skeleton Barrel
Elixir
Avg. Elixir
3.4
COPY DECK

Mighty Miner Hog Rider Deck

Balloon
Balloon
Bats
Bats
Clone
Clone
Freeze
Freeze
Mega Minion
Mega Minion
Miner
Miner
Rage
Rage
Zap
Zap
Elixir
Avg. Elixir
3
COPY DECK

Royal Hogs Phoenix Deck

Cannon Cart
Cannon Cart
Clone
Clone
Flying Machine
Flying Machine
Furnace
Furnace
Giant Skeleton
Giant Skeleton
Skeleton Barrel
Skeleton Barrel
Tornado
Tornado
Witch
Witch
Elixir
Avg. Elixir
4.1
COPY DECK

Phoenix Wall Breakers Deck

Clone
Clone
Flying Machine
Flying Machine
Freeze
Freeze
Furnace
Furnace
Giant Skeleton
Giant Skeleton
The Log
The Log
Night Witch
Night Witch
Skeleton Barrel
Skeleton Barrel
Elixir
Avg. Elixir
3.8
COPY DECK

Archer Queen Mega Knight Deck

Archers
Archers
Arrows
Arrows
Clone
Clone
Electro Spirit
Electro Spirit
Fire Spirit
Fire Spirit
Firecracker
Firecracker
Mirror
Mirror
Poison
Poison
Elixir
Avg. Elixir
2.4
COPY DECK

Royal Hogs Skeleton King Deck

Bats
Bats
Cannon Cart
Cannon Cart
Clone
Clone
Giant Skeleton
Giant Skeleton
Goblin Machine
Goblin Machine
Skeleton Barrel
Skeleton Barrel
Tornado
Tornado
Witch
Witch
Elixir
Avg. Elixir
4
COPY DECK

Royal Ghost Goblin Barrel Deck

Baby Dragon
Baby Dragon
Bats
Bats
Clone
Clone
Golem
Golem
Guards
Guards
Lumberjack
Lumberjack
Night Witch
Night Witch
Rocket
Rocket
Elixir
Avg. Elixir
4.3
COPY DECK

Royal Giant Phoenix Deck

Barbarians
Barbarians
Clone
Clone
Flying Machine
Flying Machine
Giant Skeleton
Giant Skeleton
Goblinstein
Goblinstein
Skeleton Barrel
Skeleton Barrel
Tornado
Tornado
Witch
Witch
Elixir
Avg. Elixir
4.3
COPY DECK

Archer Queen Mega Minion Deck

Archers
Archers
Arrows
Arrows
Bats
Bats
Clone
Clone
Electro Spirit
Electro Spirit
Giant Skeleton
Giant Skeleton
Skeleton Army
Skeleton Army
Skeleton Barrel
Skeleton Barrel
Elixir
Avg. Elixir
3
COPY DECK

Royal Giant Wall Breakers Deck

Arrows
Arrows
Barbarians
Barbarians
Cannon Cart
Cannon Cart
Clone
Clone
Flying Machine
Flying Machine
Giant Skeleton
Giant Skeleton
Hunter
Hunter
Skeleton Barrel
Skeleton Barrel
Elixir
Avg. Elixir
4.1
COPY DECK

Royal Ghost Giant Skeleton Deck

Baby Dragon
Baby Dragon
Barbarians
Barbarians
Clone
Clone
Flying Machine
Flying Machine
Giant Snowball
Giant Snowball
Lava Hound
Lava Hound
Lumberjack
Lumberjack
Miner
Miner
Elixir
Avg. Elixir
4
COPY DECK

The Clone excels as used in the appropriate deck with cunning support and timing. Master this deck and rank up in ladder and challenges with ease.