Deck List Monsters Dark Magician (2) Magicians Souls (3) Maxx C (2) Magicians Rod (3) Destiny HERO - Celestial (1) Dark Magician Girl (1) Destiny HERO - Dasher (1) Gadarla, the Mystery Dust Kaiju (3) Spells Monster Reborn (1) Upstart Goblin (3) Magicalized Fusion (1) Fusion Destiny (2) Chicken Game (3) Magicians Salvation (1) Dark Magical Circle (1) Super Polymerization (2) Called by the Grave (2) Soul Servant (3) Secrets of Dark Magic (1) Traps Magician Navigation (1) Solemn Judgment (1) Eternal Soul (1) Extra Deck Mudragon of the Swamp (1) Starving Venom Fusion Dragon (1) Predaplant Dragostapelia (1) Dark Magician the Dragon Knight (1) The Dark Magicians (1) Destiny Hero - Destroyer Phoenix Enforcer (1) Predaplant Triphyoverutum (1) Quintet Magician (1) Imduk the World Chalice Dragon (1) Relinquished Anima (1) Artemis, the Magistus Moon Maiden (1) Predaplant Verte Anaconda (1) Black Luster Soldier - Envoy of the Beginning (1) Selene, Queen of the Master Magicians (1) Accesscode Talker 1 Tempo And Adaptability One of the main plays any Dark Magician specialist should aspire to master in Yu-Gi-Oh

So Arc, what's the "weak point" of "Kashtira"
150 plastic card sleeves to protect your deck from monster viscera and other annoyances
These turn into quick effects when the ships have a Plunder Patroll card equipped to them, which will happen by default if you summon either of these ships with Blackbeard, Redbeard, or Whitebeard's effects
It also synergizes with the enrage mechanic from Ixalan
The more limited a card is, the harder it is to find, the more people are willing to spend on it