We were missing a mana sink and graveyard mechanic, and, well flashback certainly fit the bill
Damage is the way that most Dragon decks win, so a one-sided damage doubler should be a welcome addition to the archetype
It's a somewhat demanding deck that will require you to plan your Challengers well and save valuable resources for the right moment, but it's also a fun deck that can be made much stronger very easily by swapping in a few more Evasive cards, like Genie, On the Job and Goofy, Daredevil

Ruby/Sapphire Into the Inklands Starter Deck Cogsworth - Talking Clock (x2) Della Duck - Unstoppable Mom (x3) Dewey - Showy Nephew (x2) Duke Weaselton - Small-Time Crook (x2) Flintheart Glomgold - Lone Cheater (x2) Flounder - Voice of Reason (x3) Gramma Tala - Keeper of Ancient Stories (x3) Gyro Gearloose - Gadget Genius (x1) HeiHei - Accidental Explorer (x3) Huey - Savvy Nephew (x1) Kakamora - Menacing Sailor (x3) Louis - Chill Nephew (x3) 003-150 (x2) Maui - Winged Demigod (x3) Minnie Mouse - Always Classy (x2) Moana - Born Leader (x1) Moana - Undeterred Voyager (x3) Scrooge McDuck - Richest Duck in the World (x1) Scrooge McDuck - Uncle Moneybags (x2) Simba - Scrappy Cub (x1) Webby Vanderquack - Enthusiastic Duck (x3) Dragon Fire (x2) Voyage (x2) Maui's Fish Hook (x1) Sumerian Talisman (x2) Vault Door (x2) Agrabah - Marketplace (x3) Motunui - Island Paradise (x2) Amber/Emerald Into the Inklands Starter Deck Cubby - Mighty Lost Boy (x3) Dalmatian Puppy - Tail Wagger (x5) 003-071 (x2) Flotsam - Riffraff (x2) Helga Sinclair - Vengeful Partner (x1) Horace - No-Good Scoundrel (x2) Jasper - Common Crook (x2) Jetsam - Riffraff (x2) Kida - Atlantean (x3) Kit Cloudkicker - Tough Guy (x2) Lucky - The 15th Puppy (x1) Nani - Protective Sister (x2) 003-014 (x3) Peter Pan - Lost Boy Leader (x1) Pluto - Determined Defender (x1) Pluto - Friendly Pooch (x3) Pongo - Determined Father (x1) Robin Hood - Daydreamer (x1) Rolly - Hungry Pup (x3) Starkey - Devious Pirate (x1) Tinker Bell - Generous Fairy (x2) Wendy Darling - Talented Sailor (x3) Wildcat - Mechanic (x2) Strike a Good Match (x2) Hypnotize (x2) Improvise (x3) 003-100 (x3) 003-032 (x2)

If their deck is built around this, theyre already committing to the strategy
Both cards on the front of the box are Foiled, and all 60 of these cards are guaranteed to be included in the deck (sorted by cost and then alphabetically)