In my game, our druid has recently been given a gift by his deity, an artifact. The party is in the 8-9th level range and he's one of the few members who didn't have an artifact yet (mostly due to the magic-heaviness of the pre-published module that I'm running). So, I'm trying to figure out what kind of abilities this armor should have.
The armor (which was just altered by his deity) is currently a rhino-hide armor (only made of dragon hide) with the wild ability. The druid in question prefers to use wildshape to go into battle, though his next favorite tactic is call lightning.
My current idea is that the armor allows druid to expend an extra wildshape/day in order to gain the use of the creature's extraordinary qualities (scent, blindsense, fast healing, etc). I'm definitely not willing to give him the creature's spell-like abilities and I'm really hesitant about supernatural ones, though perhaps if he expends 3 or more wildshapes/day?
I realize that this is a powerful ability, but most of the party already has powerful artifacts. My hope is actually that this ability will give the druid skills that aren't necesarily combat specific (which the party excels at already) but that would allow him to be more creative outside of combat.
Please, offer your suggestions? Is this too powerful for a minor artifact?