Often, decks built around Haughty Djinn run protection such as Slip Out The Back and Shore Up, ensuring it stays on the battlefield while also fueling its power.
Thank goodness your minions get +1/+1 to break up the parity
It can pick up small utility creatures like Sakura-Tribe Elder or Spore Frog while it fills your graveyard for other synergies
When any nontoken Wizard enters the battlefield under your control, you can pay one generic mana to make a copy of it with haste
This is nearly 50% higher than Bloomburrow s previous record of 12,215 concurrent players back in September last year (which, by the way, means that bunnies beat dragons in this department: Tarkir: Dragonstorm reached 12,119 players according to SteamCharts, failing to beat Bloomburrow by less than 100 players)
As you are in Green, you have a myriad of ways to ramp into the Legendary Serpent, with plenty of token doublers to go wide thanks to Parallel Lives and Doubling Season