This download contains sound files from Dota:
1. Butcher 'fresh meat'
2. Dominating
3. Double Kill
4. First Blood
5. Godlike
6. Holy Shit
7. Killing Spree
8. Mega Kill
9. Monster Kill
10. Ownage
11. Triple Kill
12. Unstoppable
13. Wicked Sick

For those who too lazy to test, here are the sound order:
- First blood > killing sphree (after 3 kills) > dominating > mega kill > owning (after 5 kill) > unstoppable > wicked sick > monster kill > godlike > holy shit