mtg cards that you can have any number of Wizards the Coast Relentless Rats This is of the C rarity. Ranking Every “A Deck Can

The display box includes 24 15-card booster packs, perfect for an eight-player draft pod

This list only considers cards that have enters abilities that trigger when they enter as opposed to abilities that trigger when another permanent enters

My favorite of this bunch is Shamanic Revelation

Set Boosters are also a great way to adventure through the plane of Dominaria, as all the common and uncommon cards are connected to each other, and they help tell the story of the invasion and defense of this glorious plane

Game Rant

In something like a midrange deck you are basically never going to use it on yourself to enable some synergy as it is so low value