Buy me a coffeeArmour of Poison Spike
This special ability is identical to mundane armor spikes except that the spikes retract into hidden compartments in the armor.
Book of Vile Darkness 3.5
By Monte Cook
When they come out in response to a command word, they deal 1d6 points of piercing damage (just as normal armor spikes), and the spikes are coated with a dose of a poison that deals 1d3 points of Strength damage as both initial and secondary damage (Fort DC 16).
Caster Level: 7th; Prerequisites: Craft Magic Arms and Armor, poison; Market Price: +1 bonus.