They might reduce the powers of opposing creatures or equalize games by killing large numbers of creatures at once
I totally understand that I may be in the minority here, but I think Legacy is a worse format when it revolves almost completely around one- and two-mana cards, and in my head, it sure feels like Delver of Secrets was when that started
Honorable Mention: Ball Guy Ball Guy is not actually a Poke Ball card, but he's a hilarious-looking character, and his effect relies on using lots of Poke Ball cards
Legend has it (ok not legend, just the word on the street) is that there are only 5 PSA 10 graded cards in existence
Play This, Not That The small drawback on Isamaru, Hound of Konda (and 2/2 creatures like it) more than make up for a potentially huge delta in mana
A new Series of packs (Series Two, Series Three etc) is due to be released every six months from February 2023 onwards