cards with friends forever mtg cmc<=2 or not:permanent) is:commander (o:partner or o:"friends forever") ci>1 · Scryfall Magic: The Gathering Search Together Forever X4 M/NM Magic:

The most ubiquitous card among these is Reanimate, a one-mana sorcery that takes a creature from any graveyard and puts it on the battlefield under your control

8 Shambleshark Land Shark

Encouraging your opponents to attack each other helps you push damage and remove some blockers

Mazirek, Kraul Death Priest Mazirek, Kraul Death Priest is a pretty slow commander, but it generates a ton of value if you take the time to cultivate it

Cards from Un-sets are often designed as jokes, so they can get very weird

They are, however, legal for play in Mystery Booster 2 Limited formats, so if you happen to have one in your Draft or Sealed deck, have fun with it