You don't have to do anything special with your party creatures, the party abilities just check to see if these creature types are represented across the creatures you have in play
The tokens are squirrels too, making it an easy inclusion in Chatterfang, Squirrel General
Best of all, once youve made one Wurm with his ability, you can significantly reduce the cost for future activations
This card hosts a number of infinite combos when specialized properly
Imagine I cast Bioshift targeting two of my own creatures, one with five +1/+1 counters on it
This suggests that the deck will be stocked with hero cards, and it will be supported by either equipment to further increase the damage output of the creatures, or instants and sorceries to help maintain a strong board presence while keeping your opponents' boards light