Cards for the 5th edition of the world’s most famous fantasy RPG.
All monster decks with "Deck of Beasts" titles are from Kobold Press's Tome of Beasts and those with "Creature Card Codex" titles are from their Creature Codex book. These are broken down in to decks of about 90 cards each by challenge rating. Low is CR 0-2, Intermediate/Mid is CR 3-5, Challenging is CR 6-9, and High is CR 10-14. These are loose categories--sometimes groups of related creatures (demons, angels, kobolds, etc.) are kept together. Creatures from the "Tome of Beasts II" are all in one 432 card deck titled "Deck of Beasts II"
In addition, we have the Beasts, Oozes, & Plants from the main monster book in one deck, a deck of Prehistoric Creatures, and a deck of custom magic items titled "Panderlyn's Curiosities".