Check the official Fantazia: Character Editor that allows you to create millions of characters with different classes and equipment. Each character has more than 10 animations. Click on this link to check the asset. They have similar style to these monsters.
Each monster has the following animations: Idle, Walk, Death and Attack. The animations are very smooth and high-quality.
All source files are included in the asset. You can easily manipulate them to create new monsters.
The asset is perfect for anyone developing a 2D game for PC, Mobile, and Consoles. The monster are suitable for any genre.