Each of your creatures gets +1/+1 for each other creature that shares at least one creature type with it
I think the card is a little much for a graveyard-centric Cube, but it has the raw power to hang in Vintage Cubes, and being a creature that takes some mana to set up makes it appropriate for a wide range of lower-powered Cubes as well
Titans Nest and Earthrumbler are prime examples of awesome tools to utilize
It also brings back Timeshifted cards, reprinting a small subset of cards from Modern Magic in vintage frames for the first time
3 Dan Mumford Dan Mumford, head of Studio Dan Mumford in London, is a digital artist with a penchant for colourful reimaginings of pop culture icons, from album covers to movie posters
Until the end of your turn, you can cast that card - a nice cheeky theft by the Monkey Pirate