Best Rare Water Deck

In Legend of the Cryptids one of the main questions people have is what is the best Legend of the Cryptids Rare Deck?

I look at all the cards available to the Rare class and focusing on purely offensive or defensive stats and the buff the card provides put together what I believe is the highest performing deck for that realm using cards based in that realm. Naturally these are subject to change when new cards are released but are still normally valid.

Its kind of a pain to find accurate information for this game so if you come across a card of the Rare variety that beats these please let me know.

Best Rare Water Attack Deck:

1st Card: (Focus) Atum of Vitality - 8820 Attack - Medium Boost to Water Attack
2nd Card: (Frozen) Ice Dragon - 7560 Attack - Medium Boost to Water Attack
3rd Card: (Waterstrike) Whirlpool Gargoyle - 6090 Attack - Medium Boost to Water Attack
4th Card: (Harmony) Whispering Celestial - 6790 Attack - Small Boost to Water Attack
5th Card: (Bewilderment) Melancholy Undine - 7280 Attack - Small Boost to All Attack

Water realm has a surprisingly large amount of acceptable attack cards. Another acceptable card is (Frozen) Ice Dragon which has 7560 Attack and a medium boost to water. Finally a less expensive option would be to use (Harmony) Whispering Celestial for 6790 Attack and a small boost.

Best Rare Water Defense Deck:

1st Card: (Giving) Silent Mermaid - 8050 Defense - Small Hit to Fire Attack
2nd Card: (Fearless) Star Reader - 6300 Defense - Small Boost to Water Attack and Defense
3rd Card: (Refused) Raging Astaroth - 6160 Defense - Medium Hit to Fire Attack
4th Card:(Snakelord) Elegant Naga Raja - 6048 Defense - Medium Hit to Fire Attack
5th Card: (Virtuous) Pure Snow Maiden - 8050 Defense - Small Boost to Water Attack

Silent Mermaid and Pure Snow Maiden are the only two cards in the rare category that have over 8k defense. Unfortunately Pure Snow Maiden has a medium boost to water attack. I am not sure if this is a typo because the Wikipedia on this game is quite frankly awful. If Pure Snow Maiden has a more logical medium boost to water defense, it would be the best defense card. Otherwise most of the cards are lacking in Defense from what I've looked up.

Hopefully this helps what to aim for in water.