New Mob (Soulbone Skeleton)

This would be a new skeleton that lurches toward the player, with its back hunched. They would spawn in small or large swarms due to their ability. When one dies, its soul flies up and into the nearest Soulvein Skeleton. The skeleton that the soul flies into would hold its hands in the air and emit a purple effect around them, this makes the skeleton stronger, slightly faster, and more armored. This would keep happening until there is one left that is quite strong. I think this would be a unique mechanic that would create an interesting battle style.