So we have it for longbows and crossbows but not for short bows. Here is the idea:
Ruin: Rezlak, Uita, Izra, Nornda
Effect: Adds Keen , 6d6 Sneak Attack, Death's Ruin, Builder's Ruin, Nature's Ruin, Spirit's Ruin and Elemental's Ruin to a Shortbow of your choice.
Post your ideas if you have.