New low-mid tier engineering item - caltrops

[Sir_Eldras]

Caltrops! Why not throw a handful of these out to slow Nords down?

Low tier engineering item - used to slow/slightly damage Nords. I could see them being placed in the path of an incoming wave and being used to slow them down so that ranged can take more out before they hit the cades. This could be amazingly useful in hardmode. Is there any existing asset in M&B coding that could simulate this slowdown?