Being a -1 here doesnt allow to hold forever, which is the one difference between 0s and 1s), one 1/1 with more flexibility (Kasmina, Enigma Sage) 4-mana: +: One 1/1 (Elspeth, Knight-Errant, Saheeli, the Gifted ) with lifelink (Sorin, Lord of Innistrad, Archangel Elspeth) or other minor upside (Nahiri, Heir of the Ancients, Jaya, Fiery Negotiator, Commodore Guff ), 1/3 chance at two 1/1s with haste (Comet, Stellar Pup) 0: One 2/2 (Arlinn Kord, Gideon, Ally of Zendikar, Garruk Relentless) with haste (Xenagos, the Reveler), one 1/1 with major upside (Zariel, Archduke of Avernus) -1: One 3/3 (Garruk Wildspeaker, Lukka, Bound to Ruin (Compleated)), one 2/2 with upsides (The Wandering Emperor) 5-mana: +2: Two 0/1s (Tevesh Szat, Doom of Fools) +1: One 2/3 with minor upside (Ashiok, Nightmare Muse), one 1/1 with major upside ( Freyalise, Llanowars Fury , Tezzeret, Artifice Master, Nahiri the Lithomancer ), one 3/3 (Garruk, Primal Hunter, Vivien, Monsters Advocate, Nissa Who Shakes the World, Jared Carthalion ), one 2/2 (Liliana, Deaths Majesty), one BIG creature of variable size (Nissa, Ascended Animist, when compleated twice

Each is also available as a Collectors Edition with every card in surge foil
Keeping the same price as more powerful decks while lowering the power level isnt great
Bloodthirsty Conqueror Showcase (Fracture Foil) Bloodthirsty Conquerer made its debut in MTG Foundations as well
This could help the Mono White Tokens and UW Control matchups, but blue Greasefang decks are incredibly unpopular in Pioneer, and The Lunar Whale might not be enough to sway players
From a playability standpoint, Arthur is probably my favorite card in all of Rise of the Floodborn, as his ability adds a lot of fun combos and mechanics to the game we didnt have in The First Chapter