yugioh rebirth card BACH-EN077 - Monster - Common Spell Card Sophia, Goddess of Rebirth card

To understand the importance of a 10 inch by 11 book, below youll see an Alpha artwork and how small they all were due to the printer in 1993 being rather small

UR Ultra Rare Nibiru, the Primal Being X LIGHT Level 11 [ RockEffect ] ATK 3000 DEF 600 During the Main Phase, if your opponent Normal or Special Summoned 5 or more monsters this turn (Quick Effect): You can Tribute as many face-up monsters on the field as possible, and if you do, Special Summon this card from your hand, then Special Summon 1 "Primal Being Token" (Rock/LIGHT/Level 11/ATK ?/DEF ?) to your opponent's field (this Token's ATK/DEF become the combined original ATK/DEF of the Tributed monsters)

They go for fifty bucks retail, and for hundreds of dollars on the secondary market, and can yield some seriously valuable cards

Even ignoring the rest of the resources that a player may have available to them, each activation on the Ballista is just providing another resource that they can use that didnt cost them any actual cards to generate