Since the deck is a creature and combat-focused deck, creatures make up the majority of the decklist
Also included in the deck is a ton of Demon synergies, which provides some more of that aggro I mentioned earlier
Assassins aren't a very commonly played creature type, so outside of someone else playing an Assassin-based deck, Raise the Palisade will get rid of most creatures
15 of these will be game pieces the cards you actually want while the 16th will be a "marketing card" that usually includes an ad for other Magic products, but may also be a token you can use in the game
Arahbo, Roar of the World works great for the deck, but if you want to upgrade, you wont be able to find too many options
There are some interesting staples here, with a lot more options from Fabled than the Amber and Sapphire deck, especially the options from A Goofy Movie