There are so many examples of passive card draw engines in Lorcana, with varying degrees of success, and frankly this is a good thing: Amber Amethyst Emerald Ruby Sapphire Steel Cards like Cinderella - Knight in Training, Simba - Future King, and Tinker Bell - Tiny Tactician are card sifting and improvement engines and not card draw engines for the purposes of this discussion
The most spectacular examples feature the holo pattern shifted completely off the Pokemon's artwork and onto the card's border or text box, or shifted so far that the holo appears to "window" into a section of the card that was never intended to shimmer
Hashaton, Scarab's Fist is a 1/3 Commander for just one white and one black that can duplicate creature cards you discard for just three mana
However, what I can give you is a helpful starting point
Furthermore, especially when we look at the green-white decks, there's a ton of variation and an unclear difference between GW Hatebears and GW Aggro
Includes all cards pictured 2 card lot