Time Limit: 6 или 4?

Yes, but with 50 butterflies, you can't defeat 130 golems on the first day. Only with tech support ;)

Oh, guys... You're getting too comfortable! We used to play blitz for 2 minutes, then 4 minutes, and that suited everyone, and 6 minutes at most.
But now you're asking for 8 minutes!!!
You're all monsters! Why do you need more than 4 minutes?
Just do it nicely, like you did on the standard 4 minutes (in the last couple of years), and we'll learn from you! You're already showing how to take the Undead on the first or second day in four minutes, why do you need more time?!
Have some conscience! At least give us newbies a chance to adapt to the world of Heroes! Otherwise, we won't be able to keep up with you :(

And then... It won't be interesting to play Heroes at all if you take at least five Undead in 6-8 minutes...