Card
Cards are pieces of Equipment.
An in-game Monster can drop a spirit on its death. Every monster type drops its own spirit type. The spirits' drop probability is 0.01% which is equal to a 1 to 10000 chance.
The spirit lasts for 3 hours. After 3 hours, it expires. The expiration date of the spirit can be drastically increased through putting the spirit into an empty bottle. The bottled spirits' expiration date is 10 days, which is 240 hours.
A Zoologist NPC can enchant the spirit into a card.
The cards can be used to enchant equipment. The cards can only be used to a slotted piece of equipment. To enchant a piece with the card, use a Zoologist NPCs' services.
If a piece of equipment is already enchanted with a card, it is possible to enchant it with another card. Previous card enchantment will be lost. It is not possible to take the card out of the piece of equipment. The cards have a requirement for which type of the equipment it can be enchanted with.
The cards were firstly introduced in a pre CBT2 progress report post.