Well, IMHO, it's not necessary to outnumber the Cyclops. It's enough, for example, that your certain stacks can withstand their stacks' attacks, and that's it. But this is just in theory. I've never fought against a million champions; the maximum I've seen in a group was 10,000 skeletons.)))

Although, I would check with a spare hero how many Cyclops grow in a week – that will show whether it's worth waiting. If more than a thousand grow, there's definitely no point in waiting; you won't catch up with them.

On the other hand, I was browsing achievements yesterday – there's one called "play for 25 game years." Have you already received it? ))))

Added 4 minutes ago

And you need to complete the map in two, maximum three months!

Well, that's not necessary. I primarily deal with the main enemies (or keep them under control so they don't grow faster than me), and then I calmly explore the map and clear it...