As mentioned, Golden Packs are Wizards way of making it less difficult to make the decks you want to play
Often you can just flop it down and turn everything sideways and in wins the game if they block or if they don't
During each of the Archenemys turns, at the beginning of their first main phase, they reveal the top card of the scheme deck and set it in motion. Most of the time, this triggers the effect on the card, which then goes onto the stack and resolves as normal
This usually works best with Threatens to circumvent giving the creature back, but its a fine strategy for repeatable mind control effects
This Enchanted card has been underappreciated, just like Namaari's was in the Disney movie, Raya and the Last Dragon
Azlask only costs 3 mana itself, too (although the cost to activate its ability is {WUBRG])