New trap, the "moving sand" unlike the bombs does not do damage on the troops, unlike the springs does not eliminate the troops ... but what does it then? It would slow down the progress of the ground troops in your village, also lowering their rate of fire the time to cross this swamp, and why not put a perimeter penalty of a square or 2 after crossing this trap. We always walk less quickly with our feet full of mud !! :)
