Thalia is an example of a card that doesnt have a large original set foil premium associated with it yet
Essentially Draft-lite, Jumpstart packs are each a 20-card half-deck
Elsha, Threefold Master One blue, one red, one white legendary creature - Djinn Monk - 1/1 - Mythic Rare Trample Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Whenever Elsha deals combat damage to a player, create that many 1/1 white Monk creature tokens with prowess
That matters commercially
In each game, these formats have a relatively limited card pool, but that makes it easier to choose which cards to use, and that makes the format beginner-friendly for both games
This pack centers around fan-favorites Zoro and Sanji