Ifrits are flying units that permanently have a fire shield, which is more effective the more ifrits there are in the stack. When reflecting an attack, they provide such a strong counterattack with this shield that it's quite significant.

Is this a typo, or is it really like that?:confused: I always thought that the shield's effect only depended on the damage the ifrit receives.:rolleyes:

One of the advantages of the Nightmare is its low construction cost. It saves on sulfur.

In general, in my opinion, the Nightmare is worse than the Ifrit for many. The Ifrit can work well in conjunction with the Black Dragon when clearing the map, and you don't have to worry about the Black Dragon hitting the Ifrit with its fire breath.