I'm a Paladin with the tradition one-handed mace/shield combination going for me. Since I started investing talent points into redoubt (+x% chance to block for 10 seconds after being hit with a crit). I have noticed my blocking much more more than before.
In three levels, I also get a skill called Holy shield, which boosts my blocking by another 30%. I should have around a 65% blocking rate every time I get crit'ed ^_^.
I have heard that you can attach spikes to shields to do extra damage each time you block. I would like someone to explain this process to me, and advise me on what spikes need what levels, how much the operation approximately costs, and how useful it is. Thank you very much ^_^