PH4NTOM what mission are you on, you might not have unlocked they others, one of them is unlocked at mission 10, it costs 10 energy and is called heart of corruption side, the proper one costs 25 energy and is called heart of corruption 1, otherwise don't have a clue.
@JVl0535 what your forgetting that it isn't just a single card which creates the deck, it is a mix of cards which work well together, even though some cards may be very overpowered they will never match up to a well created deck of cards which some may consider "outdated".
all i can see on my screen is the effing worm... p.s after a while your worm can float without santas hat, im at the top of the screen eating them word ass alien things..
 "Kingdoms CCG"){kind=icon}
 "The King's League: Odyssey"){kind=icon}
 "Tyrant"){kind=icon}
 "Effing Worms - Xmas"){kind=icon}