Sealing cards
Sealing cards are expensive and often fail. When I was on volcano 5 veteran mod I encountered a cheeky and failed to catch it 3 times with a 54% 59% and 74% chance of catching it unfortunately it died due to my draconius's thorn-2 effect. I'm hoping haypi will increase the catch rate or sell sealing cards for a reasonable price such as 2 gold or 3000 silver.