american mini card sleeves Mayday Premium 50 Clear 41 x 63mm Sleeving your cards adds to their bulk so they will take up more room in the box Card Sleeves - Mini American

Ok Nightmare Pain PHNI-EN054 (YuGiOh Phantom Nightmare) Details All prices are the current market price

Eleven sources may seem low

Changeling Outcast: Provides an evasive creature that counts as a Ninja

Special Summon up to 2 monsters with different names from your hand and/or Deck, that mention "Umi" or are WATER Normal Monsters, in Defense Position, then if your opponent controls a monster, you can Special Summon any number of Level 6 or lower WATER Normal Monsters from your hand and/or Deck

Both use standard ME math (~4.5% SIR slot, ~68 SIRs in the set) SIR hit rate doesn't change because the box is called a booster box