Jellybug
Warlord
spawnbusting prevents spawns within the 5*5 box around the unit, so moving the unit more than two squares away would allow the possibility of barbs appearing. i usually go on or next to, depending on which has a better view/ defensive terrain (seeing a barb archer from a hill may impact my future settling plans for example). for prince, just getting a unit on the spot or a nice hill/forest next to it should do the trick
note that although barbs cannot spawn in fog, they can spawn in black tiles, the totally unexplored ones, even if they are within the 5*5 box
note that although barbs cannot spawn in fog, they can spawn in black tiles, the totally unexplored ones, even if they are within the 5*5 box