Last edited by Ramazan; 02-21-2016 at 08:48 AM.
Immortal Beast's big advantages are the Prince experience gained and the cost savings you accrue over time by using level 20 fodder instead of lower level units. The map really only sacrifices the rate at which you gain unit experience and while that's not insignificant most players find it quite manageable given that beating Immortal Beast requires a fairly mature team in the first place. It's a great map for putting your team on cruise control and slowly creeping your CC'd units towards level 50+ without breaking the bank.