Water has 40 Creature cards, 12 of them Rare. The Culdcept BEGINS best water cards are led by Dagon, the biggest Water body in the set, and the rest of the list is built around stopping attacks and locking the board rather than out-statting an opponent.

Culdcept BEGINS Best Water Cards: The Rare List

Cost is shown with its deployment requirement; AT and HP are the printed values.

CardCost and requirementAT / HPWhat it does
Dagon120+ G, Water land, discard60 / 80/80Scroll Critical Hit, Boost [Water] HP+10; the user loses 100 magic at the end of the battle
Leviathan100+ G, Water land40 / 60/60On victory it changes the element of the territory it fought over to Water, so a won battle is also a converted land
Yeti70+ G, Water land40 / 40/40Neutralizes Attacks against Fire and has a 60% Instant Death against Fire
Amabie70 G10 / 40/40A Territory Ability that adds 10 HP and MHP to a target creature for 40 G, and it warps away to a vacant Water territory if its target survives
Vodyanoi60+ G, Water land, discard40 / 40/40Attacks First plus an 80% Instant Death
Kelpie60+ G, Water land30 / 30/30Stops every passing Cepter but the user while it stands on Water territory
Pale Globster50+ G, Water land20 / 40/40In battle AT and HP scale with the territory level, and its HP and MHP cannot be altered by spells
Apsaras40+ G, Water land20 / 30/30Neutralizes Attacks whenever the battle territory is level 3 or above, which makes it a late-game wall
Charon30+ G, Water land20 / 30/30Neutralizes Attacks at the cost of twice the negated damage in magic
Sea Bonze30+ G, Water land10 / 40/40Defensive, and during the battle neither card effects nor abilities nor enchantments can be used
Swamp Spawn30 G20 / 40/40Defensive, and a Territory Ability that adds a Dice Restriction of 1-3 to a target Cepter for 50 G
Mad Clown10+ G, Water land, discard10 / 20/20Boost, giving every one of your creatures HP+10

Two entries are worth singling out. Leviathan turns a won battle into a converted territory, and Pale Globster is one of the few cards in the game that spells cannot shrink — it scales with the level of the land it stands on.

Water's Support Package

Water also has the widest support package in the game: Water Shield, Corrosive Robe, Counter Shield and Nuclear Fusion all appear in competitive Water lists. Best item cards covers what each of those Items actually does in a battle.

The Full Water Roster

Those twelve are the Rare cards, not the whole element. Water has 40 Creature cards in total, and the card list breaks the whole 400-card set down by type and element.