Magic Card Era: I Have Countless Super Magic Cards

Two hundred years ago, space cracks and secret realms began to appear in large numbers. Ferocious beasts were raging, and countless humans were killed by the beasts. Humanity was in danger! Thanks to the emergence of the Card Magician, mankind has opened a new era - the Card Magic Era! The card magician used the magic card to seal the ferocious beast, and then contracted the magic card to fight. Humanity was able to barely gain a foothold in this world and had the right to continue to survive! Lin Yang, who traveled through time, obtained the Super God and Demon Card System! The magic card quality is not enough? "Ding~ Congratulations on the improvement in the quality of the host magic card, the rare magic card has evolved into the lord magic card!" Is the magic card level too low? "Ding~ Congratulations to the host for spending experience to upgrade the magic card level. The bronze magic card has been upgraded to a silver magic card!" Too few magic cards? "Ding~ Congratulations to the host for successfully sealing the Abyss Demonic Dragon and obtaining a Diamond Demonic Card!" .... Lin Yang looked at the newly sealed magic card in his hand and murmured: "I have... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.