If you have a correction or any drop rate you want to add, feel free.
- Phantom Liege
- Ash Beast
- Spirit Siren
- Undying Will
- Terror Dragon
- Pit Dragon
The community defined 5 star drop rate through coupons is 1 in 100.
Assuming this is true, the chances of a coupon you drawing being a Phantom Liege specifically is 1 in 1400. It's the same with all of the others.