I want to suggest adding arrows with debuffs. I’ll explain how u get the debuff effect on the arrows, first you need to end a spider/stingtail/deathtail/dustworm to make it spawn a puddle (0.25% - 0.025% depending on the creature) after that you press a button to interact with the puddle and fill a bottle of the type of debuff it dropped. Every creature has a different type of venom, warriors have a small chance to not get effected by this effect, cleric and paladin will have a chance to clean all debuffs of a player. 1 bottle of venom will be enough to give the effect to 1000 arrows.
Spider - slow damaging effect that lasts for a full minute (if a spider bites u it has a 33% chance to inflict this on you)
Stingtail - armor debuff that last till you get hit (if a stingtail stings u it has a 100% chance to inflict this on you)
Deathsting - very slow and low damaging effect that last till you die or until you drink a bottle of anti-venom which can be brough from the biologist (a new npc that will sell empty bottles and some positive potions and others) or made from herbs (can be found), venom and an empty bottle (if you get stung it has a 100% chance to inflict this effect)
Dustworm - an acidic effect that lasts for a short period of time and deals a lot of damage (ignores armor and deals around 300 damage in total, 100% to inflict the effect on a player)