Proving this point, Murders at Karlov Manor proved that its possible to balance serialized releases
Play Boosters are the best way to discover all that Magic has to offer
The pamphlet talks about buying a Two-player Starter Set, which released alongside Base Set on 1999/01/09 - one would assume the pamphlet would have been distributed very close to, on, or after that date
toss a coin, and if it is heads, change that monster to face-up Attack Position
C Common Fabled Dyf X LIGHT Level 3 [ FiendEffect ] ATK 1400 DEF 1700 When a "Fabled" monster(s) is sent from the hand to your GY (except during the Damage Step): You can Tribute this card, then target 1 of those monsters
Both debuted as part of Pokemon Sword and Shield, hailing from the Galar region