Pirate King Leviadan [LV]

[Althemia]

Pirate King Leviadan LV4 / WATER
**** / Sea Serpent Effect / 1800 ATK / 1000 DEF
Once per turn: You can send 1 Sea Serpent-Type monster from your hand to the Graveyard; destroy 1 face-up monster with 2000 or less ATK your opponent controls. During the End Phase of a turn this card destroys an opponent's monster by battle: Overlay 1 "Pirate King Leviadan LV6" from your Extra Deck on top of this card.

Pirate King Leviadan LV6 / WATER
**** ** / Sea Serpent Xyz / 2400 ATK / 1000 DEF
3 Level 6 WATER monsters
Must first be Special Summoned by Xyz Summon or by the effect of "Pirate King Leviadan LV4". This card cannot be destroyed while it has an Xyz Material. During your opponent's Standby Phase: Detach 1 Xyz Material from this card. Once per turn: You can send 1 Sea Serpent-Type monster from your hand to the Graveyard; destroy 1 face-up monster with 2000 or less ATK your opponent controls. When this card destroys an opponent's monster by battle: Attach 1 Sea Serpent-Type monster in your Graveyard to this card as an Xyz Material. During the End Phase of a turn this card destroyed two or more monsters: Overlay 1 "Pirate King Leviadan LV8" from your Extra Deck on top of this card. (Xyz Materials attached to this card are attached to that monster as well.)

Pirate King Leviadan LV8 / WATER
**** **** / Sea Serpent Xyz / 2800 ATK / 1000 DEF
3 Level 8 WATER Sea Serpent-Type monsters
Cannot be Special Summoned except by Xyz Summon or by the effect of "Pirate King Leviadan LV6", and cannot be Special Summoned by other ways. This card cannot be destroyed or targeted while this card has an Xyz Material. During your opponent's Standby Phase: You can detach 1 Xyz Material from this card OR send 1 Sea Serpent-Type monster from your hand or your side of the field to the Graveyard. While this card is face-up on the field: All monsters on your side of the field and in your Graveyard are treated as Sea Serpent-Type monsters. Once per turn: You can send 1 Sea Serpent-Type monster from your hand to the Graveyard; destroy 1 card your opponent controls. When this card destroys an opponent's monster by battle and sends it to the Graveyard: Attach 1 Sea Serpent-Type monster from your Graveyard to this card asn an Xyz Material.

[Northern Sage]

The wording for the wished effect (the summoning one) would go something like:
During the End Phase of a turn this card destroys an opponent's monster by battle: You can Xyz Summon 1 "Pirate King Leviadan LVX" using this card as an Xyz Material.
(Insert whatever LV you're summoning in place of the X)
There is no direct need for it to be mandatory, though.
And I'm not 100% sure, but I think the material parts for the Xyzs are unnecessary.

[Althemia]

[quote name='∂materasu' timestamp='1337080456' post='5939774']
The wording for the wished effect (the summoning one) would go something like:
During the End Phase of a turn this card destroys an opponent's monster by battle: You can Xyz Summon 1 "Pirate King Leviadan LVX" using this card as an Xyz Material.
(Insert whatever LV you're summoning in place of the X)
There is no direct need for it to be mandatory, though.
And I'm not 100% sure, but I think the material parts for the Xyzs are unnecessary.
[/quote]

Nope.
Xyz Summoning implies it's a summon. Overlaying on top implies that it's just placed on the field.

[Taylor Gorrell]

Uh... how can an Xyz be a LV monster if it doesn't even HAVE a Level? I recommend putting these with my RNK monsters.

http://forum.yugiohcardmaker.net/topic/277821-a-new-type-of-xyz-monster-rnk-monsters-additions-allowed/

[Wrath's Child]

[font=georgia,serif]A weird reapplication? redesign? rethink? of the historically disjointed LV archetype(?), that's for sure, though the monsters that are presented here cannot be used with existing LV support like Level Up! or Level Modulation. If I may suggest, though: I think the purpose of the first sentence of each Leviadan Xyz can be better served by using the text from Constellar Ptolemys M7 or C39: Utopia Ray, unless I misread.[/font]