Next turn he could sing something like Mother Knows Best, then you could use Max Goof Rebellious Teen to get it straight back
Supply issues that plagued Disney Lorcana: The First Chapter spiked demand for cards that were uncommon or especially effective, and at least some of this momentum inherently carries over to Rise of the Floodborn
Enchanted Lorcana cards can be identified by the unique rainbow hexagon rarity symbol at the bottom of the card
At the time of writing, card 221/204 of "Jasmine - Steady Strategist" has an average market price on TCGPlayer of $292.66
To top it off, Powerline also has deck cycling that doubles as a path to cheating out songs straight from the deck for free
Rather than questing, you can exert Dumbo and pay one ink to gain one lore and draw a card, with card draw always being a useful addition