Using metal for arrows is probably something one could do for a boss fight, in case they ran out of the other materials. But obsidian is so plentiful and easy to gather that there isn't much point in spending bronze, iron or silver for them.

There are many ways one could utilize looted arrows, but the chore of swapping ammunition types doesn't make it that appealing.

Originally posted by deadshooter:

Originally posted by CombatWombat:

Wood for birds
Poison seems pointless I haven't found a use for them

if i remember this right, Moder is weak to poison, so it's a good choice for this only fight

If by weak you mean susceptible/neutral, yeah. Poison also works on the mistlands boss.

Poison arrows are good way of keeping track of targets which move a lot or whom may hide in the mists or in bad weather and so on, though you don't need that effect if you are using draugr fang.

Poison arrows are just as effective against seekers as frost arrows are, though the slowing effect of frost is very useful in itself as well, even if there's no damage benefit. But sometimes you may want an enemy to come to you quickly instead of having it slowed down.

I like needle arrows most since I don't need to grab any wood to make them, just needles and feathers from my workbench chest.