Call of the Koi

I traveled through time, and my dear Earth Lord also gave me a system (dowry) called "Summon and Slash", a card drawing and summoning system. Then... Of course, I will join the Koi Sect and learn the Koi Strengthening Technique. But you think I'm just a harmless koi? Congratulations, you drew the blue card Li Bai! "When the sword sings out, all things will be destroyed!" Congratulations, you drew the Golden Kalub! "No one can stop me!"​ And such cards... I have a dozen!​