I just submitted this card, feel free to give me some feedback. :)
"While most young whelps are shy, this one rather joins in on the fun!"
I have say this card is quite overpowered. But let's split it into two parts.
The first part of the battlecry is totally fine. Compare it with Cloud Prince. If your card only printed as "Battlecry: If you control a Dragon, deal 6 damage." I would even consider it a little bit weak.
Yet, the real problem is the second part. If I get it right, this card triggers the second part of the battlecry even though you have an empty board, which makes it unacceptable. Look into the cards like Troggzor the EarthinatorWindshear Stormcaller and Jan'alai, the Dragonhawk, you can easily notice that 2 in 1 cards like them usually require special setups or strict prerequisites. Besides, cards with flexibility always cost more, consider Branching Paths.
In addition, please check you wordings. You are missing a colon after the word "Battlecry", and the word "summon" is never capitalized unless it is the first word of the sentence.
Therefore, I strongly recommend you to re-balance and remake your card.
Thanks for the great feedback! I have pmed a moderator if I can bump up the mana cost by 1 while fixing the text on my card. :)