New Dark Troop Wall Breaker

There should be a "Tank" of a Character or a Wizard perhaps in Dark Barracks that focuses on Walls. It will not be a one hit deal but rather a unit that worms thru specifically walls.

1) Rhino that continuously charges at walls taking 25% damage of wall breaker per level but with high HP than a wall breaker for instance.

2)Or if Wizard perhaps one that Uses Acid to break walls. With a 50% damage rate of wall breaker but average HP

Please Feel Free To input more ideas maybe this could be the start of a good thread.

It's kinda like wall breaker, just won't suicide. This type of suggestion is sort of like dogriders batriders and so on.