Who killed Gregor clegane?

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Tags

1. #several
2. #oberyn
3. #killed
4. #gregor
5. #serious
6. #poisoned
7. #collapsing
8. #before
9. #clegane
10. #inflicts
11. #eventually
12. #enjoyed
13. #admitting
14. #while
15. #skull
16. #injuries
17. #children
18. #spear
19. #crushing
20. #kills