Grail

The Grail can be called by different names: "cheat," "mega bonus," etc. (I don't consider it a cheat). The bonus it provides varies for each city; in one, it's more powerful, and in another, less so. Personally, I think it should be ranked as follows: 1. Rainbow 2. Colossus/Spirit Keeper/Soul Prison (but this is only if you're playing as Necromancers) 3. Sky Ship 4. Monument to War Gods/Flesh Eater/Earth Guardian 5. God of Fire. Here's why: Rainbow - no comment needed. Colossus, Spirit Keeper, Soul Prison - give a bonus to all friendly heroes. Sky Ship gives a bonus only to the defending hero and reveals the entire map. Monument to War Gods, Flesh Eater, Earth Guardian give a bonus only to the defending hero. God of Fire - a debatable bonus; "the presence of the God of Fire makes every week a week of demons."