-1 star: a -star junk card is used as a secondary card, and the success rate is 1%. I won't say much about this.

1-2 stars: a -star junk card is used as a secondary card, and the success rate is 72%. However, it is recommended to use a -star medium card as a secondary card when synthesizing in large quantities, and the 8% success rate can obviously reduce the loss;

2-3 stars: a good -star card is used as a secondary card, assisted by a first-class four-leaf clover, and the success rate is 73%. Here, if you are just tinkering around, you can just use a -star junk card to flush 3 stars, with a probability of 48%, but it is not recommended for mass synthesis, and newcomers don't have too much materials to try;

3-4 stars: 1 good 2-star card +2 medium 1-star cards as secondary cards, assisted by the first-grade four-leaf clover, with a success rate of 94%. Originally, you could use 1 good 2-star card +2-grade grass for punching 4, with a success rate of 75%. However, considering the price increase of 2-grade grass, the matching success rate of 211 is extremely high and the cost is similar, so it is suitable for mass synthesis.

4-5 stars: 1 good 3-star card +2 medium 2-star cards, assisted by 2-level four-leaf clover, with a success rate of 77%. There is no need to directly gamble with the 56% chance of 3-star good cards +2-level clover, you will know when you strengthen many cards;

(From the bottom, all the auxiliary cards used are good cards, so it will not be repeated below)

5-6 stars: 1 4-star card +2 3-star cards +3-level grass, with a 78% success rate, your loss can be effectively controlled, while the control group is 2 4-stars +1 3-star +2-level clover, with a 71% success rate and a probability of 71%.

(from the bottom, the master card will drop by 1 level, and you can spend 5D days to buy the amulet to protect the master card from dropping)

(to increase your personal experience)

6-7 stars: 3 good 5-star cards +3-level four-leaf clover, the success rate is 74%, which is a hurdle. It is not recommended to use the amulet in the last 7 days, but 74% is not very high. Don't worry, follow me. First, strengthen several 1-star cards and -star junk cards. The success rate of punching 2 is 72%. Be bold. After two consecutive explosions, punching 7 can basically be achieved.

7-8 stars: (The protection symbol must be put, otherwise you will understand the consequences) There are two schemes, 1.3 good 6-star cards +4-level four-leaf clover, with a success rate of 7%. Please refer to the 6-7-star card cushion method; 2.1 6-star card +2 5-star cards +3-level four-leaf clover, the success rate is 51%. What should I do? First of all, strengthen several 2-star cards and -star medium cards, and the success rate of punching 3 is just 51%. Try it several times, and punch 8 when it explodes about 4 times in a row. Maybe there are children's shoes to talk about, but I still failed. Look at how many coupons you saved compared with others' 666+4 grass. Risk and opportunity are in direct proportion;

8-9 stars: (Who dares not to put the amulet? ) There are two schemes: 1.1 7-star cards +2 6-star cards +4-level four-leaf clover, with a success rate of 49%. Please refer to the second scheme of 7-8 stars for card padding; 2.3 6-star +3-grade four-leaf clovers, the success rate is 3%, which is a bit low, isn't it? I can't help it. See how much you cut corners? But can it succeed? The answer is yes, and I became three times. First, prepare dozens of 3-star cards and 1-star junk cards, and the success rate of punching 4 is 32%. Be careful, and slowly ponder the rules. Generally, you can see the tricks in about 2 times, such as failing 6 times. Well, if you fail 6 times next time, go to 9 boldly. Remember to prepare two sets of materials, and you will definitely be able to punch 2 times in a row (this method is not suitable for midnight and early morning when people are extremely scarce).