I've trawled through many websites looking for beginner's help on Epic War 4 with no joy. I can't play videos, so I need some text help.
What I want to know is the order of Hero's/Units/Spells that I should be buying, and what order I should upgrade them. Do I upgrade before buying a different unit etc?
Oh boy, do what you want. If you can't beat a level, just replay an old one and get some points to upgrade your units. I made a guide for the game some time ago, you can find it here: [url=http://schnubbi.newgrounds.com/news/] It's at the bottom of the page, maybe you can find some useful informations there.