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
Its also a 6/6 trample, which means you can invest into a big commander and play expensive auras, which will cascade into cheaper auras, and you can hit hard
For example, the N's Zoroark ex card revealed this year at the Pokmon World Championships states that Zoroark can choose an attack from another one of N's Pokmon on the bench and use it as their own
Once Nightwhorl Hermit has been blocked, putting enough cards in your graveyard to reach a total of seven or more cards won't cause it to become unblocked
The fact that Crusade is an aura allows you to cast it and your minions at various locations