New Archtype = Mythos Beasts + new summoning techinque [7/??]

[TheEffinZ]

Okay so this is my first Arch-type, their from greek mythology,so I wanted to make them special so I made a new summoning technique to go with them. Its called "Myth Summoning" which requires you to banish most of your cards and to have as few as possible cards in your Graveyard. Another thing about Myth summoning is that if it requires you to banish your hand you pick up 2 cards during your next Draw Phase. Okay thats basically it, tell me if there OP'ed or UP'ed (Underpowered) and give advice on how I can fix them.


[spoiler=(PROMO CARD) POTM-000 Mythos Beast - Scylla][img]http://img96.imageshack.us/img96/9352/159567a.jpg[/img][spoiler=Effect]This card cannot be Normal Summoned. This card can only be Myth Summoned by banishing all cards in your hand and the top 5 cards of your deck. Increase the ATK and DEF of this card by 300x for every card that is banished. This card is also treated as a "Sea-Serpent".[/spoiler]
[spoiler=POTM-001 Mythos Beast - Cerberus][img]http://img197.imageshack.us/img197/4002/159567.jpg[/img][spoiler=Effect]This card cannot be Normal Summoned. This card can only be Myth Summoned by banishing your hand. Once per turn, while this card is face up on the field, only 1 monster can be send to the Graveyard (any other monster destroyed is instead banished). This card can attack three times.[/spoiler]
[spoiler=POTM-002 Mythos Beast - Chimera][img]http://img856.imageshack.us/img856/8314/159567z.jpg[/img][spoiler=Effect]This card cannot be Normal Summoned. This card can only be Myth Summoned by banishing 2 "Beast" type monsters and 1 "Reptile" from the field. If your opponent controls a "Warrior" type monster, this card can attack your opponent directly.[/spoiler]
[spoiler=POTM-003 Mythos Beast - Hydra][img]http://img863.imageshack.us/img863/5193/159567x.jpg[/img][spoiler=Effect]This card cannot be Normal Summoned. This card can only be Myth Summoned by banishing 1 or more WATER monsters from your side of the field. The ATK of this card becomes the ATK equal to the monster(s) banished[/spoiler]
[spoiler=POTM-004 Mythos Beast - Medusa][img]http://img231.imageshack.us/img231/4002/159567.jpg[/img][spoiler=Effect]This card cannot be Normal Summoned. This card can only be Myth Summoned by banishing 1 "Warrior" type monster and 1 "Reptile" type monster from your side of the field. You must also banish 3 cards from hand. When this card attacks 1 of your opponents monsters, reduce the ATK of the targeted monster to 500 until your End Phase. This card does not destroy the monsters it attacks.[/spoiler]
[spoiler=POTM-005 Mythos Beast - Siren][img]http://img217.imageshack.us/img217/8510/159567j.jpg[/img][spoiler=Effect]This card cannot be Normal Summoned. This card can only be Myth Summoned by banishing 2 cards from your hand. While this card is in face-up defense position, the opponents monster adjacent this card cannot attack. [/spoiler]
[spoiler=POTM-006 Mythos Beast - Minotaur][img]http://img4.imageshack.us/img4/4002/159567.jpg[/img][spoiler=Effect]This card cannot be Normal Summoned. This card can only be Myth Summoned by banishing 1 "Mythos Beast" monster and 1 "Warrior" type monster from your side of the field. If this card attacks a Defense Position monster, inflict piercing Battle Damage to your opponent.[/spoiler]

[ragnarok1945]

Minotaur is Oped

it's got 2400 atk already, if you add another 1500 that makes it 3900, way too much ATK power

I'd lower its atk down to just 1300 if you do that