The Protectors of Etheria is a stand-alone mod of the game Warlords Battlecry 3 (i.e. it can be run without having the original game installed - 100% free full game). It is an improved RTS/RPG game with new campaigns, quests, terrain, units, items, heroes, modding features and more. Beta versions available for download!
Daemons have the ability to "blink" their non-tower buildings - relocating the structure to somewhere else on the map. This includes Portals which also have an important function that goes hand in hand with the ability to Blink.
Daemonic units can enter Portals and appear out of any other Portal they own. With the ability to Blink a Portal, the Daemon player can effectively move their army around the map and attack unsuspecting players and from positions they would have never expected, such as Blinking a Portal to a player on their own island and then vomiting out an army from the Portal for a direct invasion without the use of ships or air support.
Blinking requires the consumption of nearby Souls, so a Daemon player can't just keep Blinking buildings around the map to endlessly avoid combat.
Logical feature, to be fair. Daemons should be able to teleport even their facilities.