[quote=@dragonmancer]
[@KOgaming]
With your advice, I'm going to scrap most of those cards, I do have a single more simple card to put to the table for the future, with your review of course.

Doom Wing Dragon
Level 8 Fire Effect
Dragon-Type

Monsters Tributed for this card's Normal Summon must be Dragon-Type.
When this card is Tribute Summoned, destroy all other cards on the field. This card cannot attack the turn it is Normal Summoned. 

3000/2500
[/quote]

A nuke effect like that is too powerful, especially given how little summoning conditions are needed for it. A Totem Dragon could easily provide it with what it needs. Truth be told, I'm not sure what can be done to improve it in terms of balance.