Exile effects work because they remove a permanent from the game without destroying it
Recursive 2/1s Magic design is littered with recursive 2/1s, usually 1-drops, that return themselves to play for a nominal fee plus a small prerequisite (typically another creature dying)
What bridges the midgame? If you can answer those with cheaper alternatives while you test, do thatthen upgrade into the exact pieces you like
$0.49 Spirit Token (Full Art) Unstable $0.49 Angel Warrior Token // Kor Warrior Token Commander Legends: Battle for Baldur's Gate $0.69 Angel Token Modern Horizons $6.99 Flare of Fortitude Modern Horizons 3 $0.39 Angel Token // Glimmer Token (0002 // 0004) Duskmourn: House of Horror Commander Decks $1.79 Dwarven Ruins 5th Edition $1.49 Contagion Alliances $0.99 Seraph Sanctuary Avacyn Restored $0.99 Angel Token // Treasure Token (0002 // 0015) Duskmourn: House of Horror Commander Decks $1.49 Vampire Token (Full Art) Unstable $0.35 Rogue Token (Foil) Unstable $0.49 Angel Token // Clue Token Innistrad: Crimson Vow Commander Decks 0 results found
On the other hand, Magic's lead designer Mark Rosewater is on record saying R&D considers Daybound/Nightbound a mistake, and recently admitted Wizards staff are "not big fans of the mechanic", so perhaps it was never a contender
The instants and sorceries are a little basic, mostly revolving around targeted removal or board wiping of specific card types, but that's to be expected from Mono-White