One of the treasure hunts i met this guys casting non stop everlasting ground and blooming ground. The problem is that i have cast walls earlier. When walls expand they also appear under your character trapping them or worse, the enemy that is on the wall cannot be attacked, hence victory is in this moment impossible. I am not sure that it is intended behavior - theoretically i can still win a battle by cleaning ground, and using lots of teleport, and using walls etc. However, being on the top of wall looks strange to me. here is the screenshot:
Ha ha! Wonderful! Or, in other words, terrible. Because you will discover that the Blocked Terrain from a Wall Of Stone CANNOT be removed by any other card: http://forums.cardhunter.com/threads/rockfall-terrain-does-not-replace-wall-of-stone-terrain.921 http://forums.cardhunter.com/threads/cleansing-burst-vs-wall-of-stone.2027 This scenario you've found probably will need attention (and re-coding).
I think the best way to fix this would be to have Blooming Ground not affect Wall Of Stone. And/or have cleanses only be blocked by actual Blocked tiles.