I am making a map (du-uh!) where most of the spells should change the terrain. Right now the terrain is shallow water. I want the spells to change the terrain type and lift the ground level so units are not getting wet feet. I did that, but there is a bug: You can keep using the spell over and over again and make a -what I think- mountain that has no top because it keeps getting higher. So I need help to make a trigger that makes the ground lower and changes the terrain back to what it was before. I made a trigger so that the spell cannot be cast when the unit is standing on that type of tile (ice). But that doesnt change the terrain back to was it was before. Can I get some help... a hint maybe? That would be nice, thanks