You'll be ready to go with this cool set
Examples of active card draw are Friends on the Other Side, Merlin Rabbit, Maleficent Sorceress, Magic Mirror, The Queen Wicked and Vain, Ursula Power Hungry (I mean assuming they have at least one lore...), A Whole New World, Gaston Intellectual Powerhouse, Donald Duck Perfect Gentleman, and even Ariel Spectacular Singer or Be Our Guest
If another card(s) you control leaves the field by an opponent's card effect, while this card is in your Monster Zone (except during the Damage Step): You can activate this effect
I assume this is to prevent anyone from flipping the table when their Strixhaven Dean gets downgraded to the cheaper front side, but who knows
It continues the Ultra Beasts cards, which are red GX cards, e.g