You get +1 arcane slot for each enemy beneath Binder's Jar
Obtaining Flair for a card will consume some of your duplicates, depending on the cards rarity, and you must have at least two cards left, so you will need multiple copies of a card you want to obtain Flair for
The other fix is out polish and card spray which can work wonders on these sorts of issues
10 Topps The Movie 2000 Animation Edition Pack 5 Cards + Foil $499 Qty

Provided Decklist: Monsters: 24 | Moulinglacia the Elemental Lord | Lappis Dragon ||| Atlantean Dragoons || Atlantean Marksman ||| Deep Sea Minstrel || Deep Sea Sentry ||| Deep Sea Diva | Fishborg Planter || Atlantean Heavy Infantry ||| Neptabyss, the Atlantean Prince ||| Deep Sea Artisan Spells: 14 || Surface || Deep Sea Aria | Terraforming | Call of the Atlanteans ||| Archfiends Oath || Convulsion of Nature ||| Magallanica, the Deep Sea City (YGOrg Translation) Traps: 2 || Sea Stealth Attack Extra Deck: | White Aura Bihamut | Ravenous Crocodragon Archethys | Borreload Savage Dragon | Adamancipator Risen Dragite | White Aura Whale | Cyberse Quantum Dragon || Deep Sea Prima Donna | Coral Dragon | Dewloren, Tiger King of the Ice Barrier | Marincess Coral Anemone | Knightmare Cerberus || Crystron Halqifibrax | Relinquished Anima Variations of both of these builds are currently participating in The Creative Deck Strategy Showdown, Part 2 in Group D and in Group C respectively

It also might be useful for some of the fire-weak challenges in the Rare League Card hunt