(They can't be blocked as long as defending player controls an Island.) Creature - Horror Squid Toothy, Imaginary Friend Partner with Pir, Imaginative Rascal (When this creature enters, target player may put Pir into their hand from their library, then shuffle.) Whenever you draw a card, put a +1/+1 counter on Toothy
My list of cards I think are vital here include Azusa's Many Journeys // Likeness of the Seeker, Burgeoning, Druid Class, Dryad of the Ilysian Grove, Exploration, Jugan Defends the Temple // Remnant of the Rising Star, Sanctum Weaver, Song of Freyalise, The Mending of Dominaria, and Utopia Sprawl
Each set includes cards with different rarities: Common: Basic cards that are the easiest to find
Once a $20 staple, the expanded supply from the Fabled expansion has stabilized its price at $10