Well this spells is kind of useless now.

But I found a way for it to not be that useless. Make its area of effect smaller and let it remove forests from those areas.

I was scouting with my group and tried to use it this way so I can remove the movement penalty in forest areas. Visually forest almost disappeared but movement penalty stayed. I would be cool if the penalty also disappeared.

I know then this could be used to remove forests from around cities which normally costs 25 gilden so balance it around this. Maybe the spell can remove 2 squares for 25 mana or something like this.