Dallan's Abyssal Armor

You touch a willing ally, and your hand starts to spew out black energy that soon covers the allies entire body, and promptly hardens into a coat of strong spikes.

You add your constitution total too your allies constitution total, and add the sum to the allies temporary hit points. This effect lasts until the temporary hit points are chipped off.

You also take your constitution modifier and add it too the allies armor class. However, this effect only lasts for four rounds.