About 50.7%.
1. 0 to 1: 0-star main card + 0-star secondary card, success rate = 100%.
2. 1 to 2: 1-star main card + 0-star secondary card, success rate = 88%, insurance bonus 2 points.
3. 2 to 3: 2-star main card + 1-star secondary card, success rate = 79.2%, insurance bonus 5 points.
4. 3 to 4: 3-star main card + 2-star secondary card + level 1 four-leaf clover, success rate = 66%, insurance 10 points.
5. 4 to 5: 4-star main card + 3-star secondary card + 2-star secondary card + level 2 four-leaf clover, success rate ≈ 67.71%, insurance bonus 25 points.
6. 5 to 6: 5-star main card + 4-star secondary card + 4-star secondary card + level 2 four-leaf clover, success rate = 61.6%, insurance 50 points.
7. 6 to 7: 6-star main card + 5-star secondary card + 5-star secondary card + level 3 four-leaf clover, success rate = 59.84%, insurance 200 points.
8. 7 to 8: 7-star main card + 6-star secondary card + 6-star secondary card + 6-star secondary card + level 3 four-leaf clover, success rate ≈ 60.11%, insurance 400 points .
9. 8 to 9: 8-star main card + 8-star secondary card + 7-star secondary card + 7-star secondary card + level 4 four-leaf clover, success rate = 61.6%, insurance 1,200 points .
10. 9 to 10: 9-star main card + 9-star secondary card + 8-star secondary card + 8-star secondary card + level 6 four-leaf clover, success rate = 44.55%, insurance 5,000 points .
11. 10 to 11: 10-star main card + 10-star secondary card + 9-star secondary card + 9-star secondary card + super four-leaf clover, success rate = 46.7%, insurance 15,000 points .
12. 11 to 12: 11-star main card + 11-star secondary card + 11-star secondary card + 10-star secondary card + super four-leaf clover, success rate = 50.7%, insurance 25,000 points .
13. 12 to 13: 12-star main card + 12-star secondary card + 12-star secondary card + 12-star secondary card + super four-leaf clover, success rate = 53.5%, insurance 35,000 points .