Talk:Harkonar Scope/@comment-213.65.147.203-20171016054459/@comment-2A00:23C5:BD1B:3C00:D9E9:7DB9:221F:6A6-20180703234351

Shooting the eidolons gives stacks, even if they're invincible at the time, so you won't need to wait for new enemies to appear if you're using it against them.