Ecthelion vs 100 trolls???

[Gothmog]

Thanks for all your help. Hasn't read BoLT yet, there's not enough time But soon... I keep on going through The Hobbit, LoTR, Sil and Tales of the ME (is it called like that in english?? I've got the swedish version) instead

For instance, Balrogs were practically invincible prior to this, but Ecthelion and all the other brave Elves soon showed that they could be killed...en masse.

Excuse me for my neverending questioning (and now I go off-topic, IN MY OWN TOPIC!!! ) Was there more than 2 Balrogs killed at the assault of Gondolin? Did anyone else then Ecthelion and Glorfindel manage to slay one?

Once again, thank you!