Originally posted by Asmosis:

or just use the mistblade, which duplicates the wisp effect.

That doesn't really solve the progression problem though, since you need refined eitr to make it, and if the player is short on refined eitr, they should probably make the feather cape to be better able to find more. But Mistwalker is still on top of the priority list of course.

Just in case someone doesn't know, it's not a consumable resource so the limited availability shouldn't be a huge concern. Most of the new gear is not actually necessary to progress in the biome. Focus on the cape first. :)