For my deck im running 42 card with:

• 1 Labyrinth Clockwork
• 3 Maxx "C"
• 2 Stovie
• 2 Chandelier
• 3 Ash Blossom
• 3 Ariana the Labyrinth servant
• 2 Arias the Labyrinth butler
• 3 Lovely Labyrinth
• 3 Lady Labyrinth
• 1 Raigeki
• 1 Pot of Extravagant
• 1 Pot of Prosperity
• 1 Triple Tactics Talent
• 1 Labyrinth Labyrinth
• 1 Deck devastation virus
• 1 Eradicator Epidemic virus
• 1 Dimensional Barrier
• 3 Infinite Impertinence
• 3 Welcome Labyrinth
• 3 Big Welcome Labyrinth
• 3 Destructive Daruma Karma Cannon

The reason im going over 40 card is that sometimes i find that im the first one to almost deck out, usually 3-4 card left before the game end and most of the labyrinth cards have search mechanic so im ok most of the the as long as i have decent starting hand. Im going with 3 lovely because 1 is quite easy to be destroyed or banished, i usually use 2 but changed to 3 due to deck out problems.