Who is stronger Issei vs Vali?

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Tags

1. #speed
2. #power
3. #draig
4. #summoned
5. #technique
6. #equal
7. #chance
8. #issei
9. #stronger
10. #there
11. #pseudo
12. #while
13. #output
14. #better
15. #maintain
16. #lifeforce
17. #definitely