Spiked shields/doing more with shield bash sounds interesting. Might make shielded inf experience better.Spike/bladed shields get brought up every once in a while, and immediately devolve into "nuh-uh that's just in D&D because I watched history channel and they said so, DID YOU KNOW VIKINGS DIDN'T WEAR HORNED HELMETS".
Giving a 1-2 point damage boost with piercing damage would be super fun, yes.