Changes spawn eggs into mob cards, with different card colors for different groups of mobs, and a nether portal as the back art for the cards.
The icons of the passive mob cards.
The icons of the neutral mob cards.
The icons of the hostile mob cards.
How the cards look when held by the player.
The first person view of holding the cards.
Example of a few cards on item frames.
Example of the dropped cards with the nether back art.
Example of all the cards being displayed in shelves.