SUPPORT
I do like the idea of wearing a eternal ring to increase superior spawn rate. I rarely see these specimens appear - especially when trying to chase an imbued heart on my HCIM/GIM.
In addition, could add a charging system. Example: 1 slayer Gem = 5 Charges(increase possibility of Superior spawn), 1 kill = 1 charge.
Could start at 50 charges and unlock charges in lots of 25 or 50 via GP = Potential Money Sink.
Colossal Essense Pouch Take, Good idea slayer gem charging wouldn't be bad either however it is eternal so may not need to be added