Is Chthonian Emperor Dragon good in a dragon deck and how do you use it?

Question

Mostly because I'm trying to make Ultimate Ace Dragon Deck. Although Chthonian Emperor Dragon is a [Dragon/Gemini] with its effect [This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you Can Normal Summon it to have it be as an Effect Monster with this effect: (This card can attack twice during the same Battle Phase.)] And its Attack is 2400 and Defense is 1500.

Answer 1

It isn't that good in a dragon deck. There are other options, such as Armed Dragon LV5. He is best in a Gemini deck (if one exists). Plus, in a Dragon deck, you'll most often only use Level 7 or higher dragons as the tribute monsters. This way you can resurrect them with Decoy Dragon. So what's an Ultimate Ace Dragon deck?