This aqua modern hybrid deck of sorts is highly defensive while being able to be easily special summon what you need.

Monsters:
Icejade Empress Cosmocroix X3
Icejade Ship Kingfsher
IceJade Tremora X3
Icejade Acti
Icejade Agel X3
Icejade Tinola
Ash Blossom & Ghost Ogre X3
Barrier Statue of the Torrent X3
Gameciel, the Sea Turtle Kaiju
(19)
Spells:
Messenger of Peace
Moon Mirror Shield
Harpies Feather Duster
Icejade Depths Inion Cradle X3
Icejade Curse
Foolish Burial Goods X3
Icejade Cradle X3
(13 )
Traps:
Icejade Erosion X3
Ice Barrier X3
Palezonic Dinomischus X3
(8)
(15)
Extra Deck
Fusion
Egyptian God Slime
(1)
Link
Marincess Coral Anemone X2
Marincess Great Bubble Reef
(3)
XYZ
Superdreadnought Rail Cannon Gustav
Superdreadnought Rail Cannon Juggernaut Liebe
Divine Arsenal AA-ZEUS – Sky Thunder
Toadally Awesome X2
Bahamut Shark X2
Stealth Kragen Spawn X2
Number 4: Stealth Kragen
(11)
(15)
Combos:
You could say the spell field card is the most important for this deck. Since it lowers your monsters attack while you can do all the Icejade monster effects. The level 10 monsters can be special summoned easily when on the field with this spell. Then level 10 XYZ monster.
Each icejade when summoned or targeted gives you either a draw or a special summon in union. Icejade Ship Kingfisher is key for extra summons while returning a card on the field into the deck.
Moon Mirror Shield worls with Barrier Statue of the Torrent or any other low attack monster required for field spell effect.
Foolish Burial Goods on Ice Barrier to get a leve 5 or higer monster from deck to hand. Or Icejade Erosion for extra summon from the deck.
Set the rest of the field up with traps and other spells to work with Icejade curse for ultimate protection and massive extra life points inflicted directly.
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