THE PROFESSIONAL QUIZ!!!!!1!!!

1: I dunno, I won't even try.

2: Arteezy.

3: Merlini.

4: My guess is Batrider, but I don't remember the exact period of the 6.78 patch. Batrider has always been one of the most picked Heroes: maybe not in the 6.79/6.80 patch, but he's always been on top of the list.

5: Oh, I remember it from the documentary "Free to Play"! It was EHome I think, the "bad guys" of the film. :D

6: Hmm... I can't remember. I'll throw there Morphling and Invoker completely randomly.

7: It could be Naga Siren (since she was picked so often) plus something else, maybe Dark Seer since the Vacuum works (worked?) when singing the Song of the Siren?

8: ALL PRAISE ALLIANCE!

9: The one who plays the 1 position for Fnatic.

10: CHUAN! Even though I don't follow the eastern competitive scene, EnCHUANtress rings a bell.

For number 7, I was almost going to say the Cancer Lancer (Kotol who giffs mana to PL), but I read it again a few times and only then I realized it said "wombo combo". Even Xyrus' guess of Bear plus Armlet was pretty close but didn't involve teamfighting, sadly.

4. Batrider! I've read it somewhere about a week ago. And that he's still getting picked/banned a lot. :3