Of all the Tier 3 constellations, the affinity requirements for Spear of Heavens stick out like a sore thumb.
Not only does the requirement of 7 chaos affinity points force you to make very awkward constellation choices, it also doesn’t even make sense lore wise. According to its description, it’s supposed to be the spear that defeated Ch’thon, wielded by Empyrion. Why is the weapon of the God of Light and protector of Cairn, associated with the entropic and dark forces of Chaos?
Aether and Lightning damage is exclusively found within the affinities Primal, Eldritch (and Ascendant to some minor extend). In terms of playability as well as lore wise, it would just make sense to change the Chaos affinity requirement to Eldritch.