First, assess if the type matchup feels intuitive
A duelist cannot use more than 1 copy of a card in their deck, unless using a card(s) that explicitly require multiple copies of a card in a deck to function
Night's Whisper, Treasure Cruise, Dig Through Time, and Fact or Fiction are all staples for a reason
Their game plan is this weird self-bounce, value-heavy card-draw package, which is exactly how I like playing Magic the most: generating lots of value, drawing lots of cards, and figuring out a way to win the game somehow
Get ready to do a lot of math very quickly, because this deck often wins by attacking with over twenty creatures with two or three effects modifying their power