What is wow spell batching?

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Tags

1. #tarnished
2. #mages
3. #needs
4. #priests
5. #instead
6. #processed
7. #batching
8. #rogues
9. #other
10. #server
11. #spells
12. #before
13. #polymorph
14. #gouge
15. #spell
16. #every