Here's a water deck that i created, that sucks
It's mainly to clear the field and is able to lock your opponent temporarely with fenrir.
Cards-40
Monsters >lv4-2
1 mobius the frost monarch
1 zaborg the thunder monarch
Monsters <lv5-24
1 abyss soldier
1 breaker the magical warrior
3 hydrogeddon
1 dd warrior lady
3 fenrir
3 mother grizzly
3 nightmare penguin
1 sangan
1 spirit reaper
3 penguin soldier
1 magician of faith
2 ameba
1 treeborn frog
Magic-9
1 graceful charity
1 giant trunade
1 creature swap
1 swords of revealing light
1 nobleman of crossout
1 heavy storm
1 premature burial
1 enemy controller
1 mystical space typhoon
Traps-5
1 ceasefire
1 ring of destruction
1 torrential tribute
1 magic cylinder
1 call of the haunted
*edit note: i only have 1 creature swap currently, i should be getting another common one soon...and fenrir i remove usually useless cards that'd have no basic value, like mother grizzly, mother grizzly is mainly for deck thinning, and there's no other monster that's 1500 or less atk that'd it be good searching. BTW, i have magician of faith, so i can potentially use both ameba with 1 creature swap.*

-1 Fenrir
+1 Creature Swap

You have two Amebas, yet only one swapping card? :ermm: This will let you use both Amebas, or at least help you gain some advantage by giving your opponent a used-up monster, like MoF or Penguin Soldier, then attacking for some damage. It'd make a nice combo if you destroy them with Fenrir too, and could net you a nice monster. I also feel that 3 Fenrir is a bit much. That's 6 Water monsters you have to remove from your grave, plus D.D. Warrior Lady will probably remove herself too. You might end up being forced to remove good monsters from your grave that you'll need later. You can't even search it out with Grizzly either.

I'd like to make room for 2 mirror wall, but i can't... some other cards to consider is don zaloog and ojama trio... Hydrogeddon and Fenrir both benefit from Ojama Trio... Don Zaloog helps you get rid of your opponents options. All the bounce maybe hurting the deck rather than helping it too.. destruction might be better..