I can see it doing serious work in a Multani, Yavimaya's Avatar deck, or Captain Sisay, or even a casual (non-combo) version of The Gitrog Monster
The abilities feed off each other, so if you have big creatures, youll make a huge dino, and if you have the numbers, youll lead a big army of vampires
It doesnt get back colorless creatures or artifact creatures with no colors, though, so watch out for that
He's a win con by himself in just a few turns at the multiplayer table
Endless Punishment is a group slug Rakdos precon
To get to a place in which you can play it, though, youll need cards like Prismite and Prophetic Prism, which allow you to pay mana in order to gain mana of any colour, and Skittering Surveyor, which lets you look through your deck for a land card of your choice and put it in your hand