The last thing you'll want to look for is removal
Whether they're actually good isn't immediately obvious, so I will use them to demonstrate how I see sideboard cards
After two decades, Pokemon and its card-collecting hobbyists arent going anywhere anytime soon
You can also add another Aladdin, Heroic Outlaw to make sure you find this high-impact character more often , and replace some of your early game cards like Horrace, No Good Scoundrel and Mickey Mouse, Steamboat Pilot with additional copies of Cruella De Vil, Miserable as Usual
Decree of Silence is a "counterspell" that can be "cast" even when you've already cast your one spell for the turn
None of these are particularly powerful on their own making this card not super impactful in my opinion