i used the first heartwood runic fletch kit i got off a dead scripter, after that i put them all in the trash barrel. Ive got all the good bows my archer needs and i dont feel like trying to sell the kit for a measly 3m-5m. As for killing in heartwood? if they arent wearing any armor, the poisoned shuriken works, if they are armored, get a mage and run and dump explosion spell on them, if your fast enough you can escape the guard range. blocking the exit/entrance works good if you have a scripter that dont have the script that allows them to walk over objects (pvpers use it in faction headquarters to walk over candelabras etc.) after youve had your fun with the scripter be sure to report him for unattended macro/scripting.