Liber Varietas: 50 Monster Templates

Publisher's blurb:

Get 50 Monster templates to turn ordinary monsters to flavorful, new, and awesome monsters!

There are a lot of monsters in the 5th edition monster manual, but prior publications have deliberately given us a larger array of monsters instead of lots of options for specific monsters. Gone are the 14 different goblinoid options a previous edition had. However, with some very easy steps, you can provide a cool twist to the baseline stats to create some interesting opponents, whether they are lowly goblins or powerful devils! What follows are a series of templates you can use to create more interesting monster options for your game. You can use one, two, or more templates to modify a core monster!