However, in such a complex TCG, things are rarely simple
Some major Sea Serpent-Type monsters include "Levia-Dragon - Daedalus", "Ocean Dragon Lord - Neo-Daedalus", "Orca Mega-Fortress of Darkness", "Bahamut Shark", "Brionac, Dragon of the Ice Barrier", "Sea Dragon Lord Gishilnodon", "Lavalval Chain", "Water Dragon", "Deep Sea Diva", "Moulinglacia the Elemental Lord", "Number 32: Shark Drake", "Abyss Dweller", "Mermail Abyssmegalo", and "Poseidra, the Atlantean Dragon"
All you need to do is start
Fragment Fusion X TRAP Banish from your Graveyard the Fusion Material Monsters that are listed on a "Gem-Knight" Fusion Monster Card, then Special Summon that Fusion Monster from your Extra Deck
If I've learned anything from Magic , it's to burn everything
I believe that Synchros like him that are limited to the Type or Attribute instead of the Archetype or the Generic ones are those that are good to the game since they are splashable to a lot of Decks but not everywhere causing problems