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
Here are my first five allied lists for you to check out: 1 I have not played Goblin Test Pilot, Magefire Wings, Protean Raider, or Unnerving Assault
An equipped creature damaging an opponent gets to do 2 bonus damage and draw you an additional card
Braid of Fire | Illustration by Cyril Van Der Haegen At the beginning of your upkeep you add an age counter to a permanent with cumulative upkeep
Disney
Cryptbreaker barges in near the top of that list a solid card even on its own, doing a passable Pack Rat impression, and occasionally drawing cards even outside of Zombie Tribal