Why not add Single mode cards to Multiplayer?

[danielbarbosadecastro]

To me, the cards in Single Player mode seem much more interesting than just the same cards and battle style from the multiplayer gameplay mode. So why not bring all the cards with their different battles from Single player mode to Multiplayer mode?

[WanderingHero]

Because there not balanced for multiplayer

[danielbarbosadecastro]

What kind of balance? Nothing to do with it! If the game can run in single player mode then it can obviously run in multiplayer mode as well, developers who don't want to spend more time on development