Shield spikes

Famille:Armor and Shields
Coût:+10 gp
Poid:+5 lb.
Armor shield bonus:-
Maximum Dex bonus:-
Armor check penalty:-
Arcane Spell failure:-
Speed 20:-
Speed 30:-
Source:SRD 3.5 Equipment
When added to your shield, these spikes turn it into a martial piercing weapon that increases the damage dealt by a shield bash as if the shield were designed for a creature one size category larger than you. You can't put spikes on a buckler or a tower shield. Otherwise, attacking with a spiked shield is like making a shield bash attack (see above). An enhancement bonus on a spiked shield does not improve the effectiveness of a shield bash made with it, but a spiked shield can be made into a magic weapon in its own right.