You have a few mana dorks to help cast Skithiryx quicker such as Plague Myr and Myr Convert, along with Jet Medallion to discount all your black spells
You can then sell or trade away your extras to finish off your upgrades or to recoup most of the money you spend on your decks

Plaza Japan / Amiami (Japanese Wholesale) Requirements: None, but high international shipping costs Products: Japanese booster boxes and cases at distributor prices Prices: Japanese boxes: $40-80, cases: $240-480 (before $50-150 shipping) Wholesale Buying Tips: Check Box Mapping: Buy cases (6 boxes) not individual boxes to avoid mapped/weighed boxes Storage Costs: Factor in storage if buying palletscases take significant space Set Selection: Older sets often sell at or below wholesale cost (check market prices first) Preorders: Lock in wholesale prices by preordering new sets 60-90 days before release Payment Terms: Most distributors require prepayment or net-30 terms after credit check Try Double Holo Premium Curated picks, grading ROI & data tools Learn More Where to Buy Vintage Pokemon Cards (Base Set, 1st Edition, WOTC Era) Looking to buy Pokemon Base Set cards , 1st Edition Pokemon cards , or other Wizards of the Coast (WOTC) vintage cards

Finally, place the entire package into a padded bubble mailer or a small, sturdy box
Cards worthy of premium display holographic, full-art, or autographed