Everyone Draws Cards, Can I Get a Guarantee?

Twelve years after the advent of universal card drawing, card drawing has become the primary productive force that overrides all. Hao Yun, who traveled through time, awakened to the unique [Card Drawing Guarantee System] - not only can he deduce the optimal and low-cost replacement of drawing card materials, but also a big guarantee that every 80 draws will produce a five-star gold! College Entrance Exam Card Drawing Site: The daughter of a top aristocratic family consumed a large amount of expensive materials and pulled out a storage ring, fairy sword, and rocket launcher, which caused a sensation in the whole school; In the ordinary examination room next door, Hao Yun put out a set of street stall goods with "white porcelain plates, magnolia petals, peach wood picks, and silk thread". The card pool count: [79/80] The red clouds covered the sky and poured into the world, covering the entire school. In the dazzling golden light, the world's first five-star golden limited edition - [Luoxia Sect Sword Immortal'e] from another world has arrived! But when the light dissipated, a fairy with picturesque features and cold eyes stepped out of the card pool. The cold sword in her hand was directly pressed between his eyebrows... "Be bold and evil, tell me your name!" Hao Yun: "... The system does not include after-sales for the characters drawn out under guarantee?!"