Interesting. Is this intended as a nerf of Hot Spot / Wall of Fire? Because I can see it coming in handy for my own team!
Plus this actually makes the lava spells more useful in another way as you can now use them to create quick paths through difficult terrain.
Great idea, but maybe cards like that should have a lesser "on entry" effect as well to balance that out?
True, I like it - but it shouldn't turn into something too effective. Just like 1 dam per tile in acid and fire would make sense to me
There are intentionally no "on entry" terrain effects in the game because you don't control (or see) your path - only your destination.