Just like you, I´ve been blogging for almost 1 year and only reached 400 SP, so I decided to make the same move as you did.
Unfortunately I didn't have a gold dragon, but I also sold my 2 legendaries.
Guess what, I was saving 9 packs to open later, but lost my patience and got another legendary!! :D
Great! Congratulations on your legendary :D
See you in the arena ;)
See you there!