Armor spikes

Famille:Armor and Shields
Coût:+50 gp
Poid:+10 lb.
Armor shield bonus:-
Maximum Dex bonus:-
Armor check penalty:-
Arcane Spell failure:-
Speed 20:-
Speed 30:-
Source:SRD 3.5 Equipment
You can have spikes added to your armor, which allow you to deal extra piercing damage (see Table: Weapons) on a successful grapple attack. The spikes count as a martial weapon. If you are not proficient with them, you take a -4 penalty on grapple checks when you try to use them. You can also make a regular melee attack (or off-hand attack) with the spikes, and they count as a light weapon in this case. (You can't also make an attack with armor spikes if you have already made an attack with another off-hand weapon, and vice versa.)An enhancement bonus to a suit of armor does not improve the spikes' effectiveness, but the spikes can be made into magic weapons in their own right.