Webgrip Bow
This 8-armed bow uses the remains of a spindly spider's legs and maw. The bow has 3 charges and regains all expended charges daily at dawn. When you make a ranged attack with the bow, you can expend 1 of its charges to lace it with sticky spider silk. On a hit, the arrow magically sheds the silk and releases it as a net-like web. If the target is a Medium or smaller creature, it and each Medium or smaller creature within 5 feet of it must succeed on a DC 15 Dexterity saving throw or be restrained until the end of your next turn. If the target is a Large creature, only it must succeed on the saving throw instead. Huge and larger creatures are unaffected by the web.
Summon Spiders. While holding the weapon, you can use an action to speak its command word to summon 2 swarms of insects (spiders) or 1 giant spider, which appear in unoccupied spaces that you can see within 10 feet of you. The GM has the creatures' statistics. The summoned creatures are friendly to you and your companions. Roll initiative for the summoned creatures as a group, which have their own turns. They obey any verbal commands that you issue to them (no action required by you). If you don't issue any commands to them, they defend themselves from hostile creatures, but otherwise take no actions. A summoned creature disappears when it drops to 0 hit points, after 1 hour, or when you end the effect early as a bonus action. Once this property of the bow has been used, it can't be used again until the next dawn.
The girl used to be scared of spiders: their skittering legs and swiveling eyes too inhuman to accept. But the elder taught her patience and understanding, to accept the things even most unlike herself, and see past their differences and treat them with kindness. Years later, the girl was now a woman. War drove her to hide in the twisting roots of the spiders' forest, and though she had nothing to spare, the kindness she showed them would not go unnoticed. The late elder's wise words, all these years later, guided her to seek commonality in the face of adversity. In the end, she would be the one the lead the spiders on a march with her back across the plains to retake her home.