There are four adventuring classesWarrior, Wizards, Rogue, and Clericand you can form a Party by having one creature of each of those classes on the battlefield
The same with Blood for Bones, where you can sacrifice Old Stickfingers to bring back a reanimation target, and you can even bring back Old Stickfingers to your hand with it at the same time
It has the least interesting themes of the bunch
You may play lands from your graveyard
When you do, cast it for its madness cost or put it into your graveyard.) Creature - Vampire Berserker Brallin, Skyshark Rider Partner with Shabraz, the Skyshark (When this creature enters, target player may put Shabraz into their hand from their library, then shuffle.) Whenever you discard a card, put a +1/+1 counter on Brallin and it deals 1 damage to each opponent