Despite a Keeper's best efforts, dungeons may have some points that remain vulnerable to an opponent's Bomb Wall spell. There is, however, a particularly effective defense against that spell's destructive power: the Reinforced Wall.
It might not be the flashiest of additions to a Keeper's dungeon... but it can serve as quite the nasty surprise to an attacker who decides to throw their Spell-flinging weight around your dungeon.
There are no "charges" associated with this defense; once placed, it lasts forever. Just like my love and affection for you, Keepers!
Ok, fine, maybe that's not the best example... but these Reinforced Walls last a really long time! Consider placing a few strategically throughout your Dungeon, especially if you find that you're having trouble with opponents knocking your normal walls down. by Gene_Mythic » Mon Sep 30, 2013 5:57 pm
The reinforced wall must be place in any cleared area not already occupied by a room or trap, and cannot block the passage from one area to another without an available alternate route.
Note - Max Reinforced Walls is 150
Note - Max level is 17