The four cards on offering are: Prosper, Tome-Bound (a Legendary Creature), Xorn (an Elemental Creature), Wild-Magic Sorcerer (an Orc-Shaman Creature) and Grim Hireling (a Tiefling Rogue Creature)
Immoral Bargain | Illustration by Diana Franco Sacrifice outlets are any cards that allow you to sacrifice a permanent you control, though they typically focus on sacrificing creatures
And ignore the Mad Hatter vibes in the background
Do you run lands with value like Bojuka Bog or Khalni Garden that have various enters-the-battlefield triggers
Pocket gets that a lot of the joy of Pokmon cards, just like the core games, is collecting them all and making them yours
The biggest difference is that Rayami wants those cards to die on the battlefield, so sacrifice outlets are important, whereas Indominus Rex wants those cards in your hand, which it can then easily refill with its own ability