"I'll check the desert and plains, Sammy you got jungle and mountains, Cas you got Mushroom Islands and the arctic" Dean said, sorting out the biomes between the three of them.
"Oh, so who made you boss?" Sam asked.
"Sam, he's obviously played 'Minecraft' so let him tell US How to play." Castiel said, answering Sam's question.
"Fine." Sam replied.
"Right, lets move out." Dean said.
And with that the three of them split up and each took their biomes Dean gave them.
You are the first to go, Dean Minecraft Player...
"I'm not afraid of you Herobrine. Now face me, don't be a coward." Dean yelled back.
I am no fool...I will not come after you while you are awake...
"Chicken, Chicken! BAWK BAWK BAKAWK!" Dean clucked.
Then an arrow came and barely grazed Dean's arm
You asked for it...Beware the dark.
-Sam's POV-
Your brother...the first to go. And then you.
Sam gathered up his nerves and said, "I'm not afraid of you. Your just another demon, and we will defeat you."
Naive HUMAN! I am no ordinary demon, your powers are useless.
At this Sam focused his powers on the Herobrine's voice and heard screams, then saw Dean, Castiel, and Steve run in.
"YOU GOT HIM SAMMY! GOOD BOY!" Dean yelled.
"That wasn't him Dean." Castiel said, worried.
In walks Jo, dragging a half-exorcized Balthazar
"What the HELL Sam?" Balthazar yelled.
"Sorry Balthazar. I thought you were the Herobrine." Same apologized.
"That's all well and good," Jo said, "But what the hell is happening?"
"How did you find us Balthazar?" Castiel asked.
"Easy, I found your portal, entered, Jo followed me, and we followed this map." Balthazar said, holding a map, "Then I get Half Exorcized by Sam."
"I SAID I WAS SORRY!" Sam yelled.
"Sam, Calm down." Jo said.
"Right, sorry." Sam said, calming down.
"Well anyway, I'll let you all do what your doing..." Steve said backing away slowly.
"Someone needs to stay with Dean, because..." Sam started.
"No, Sammy it's fine." Dean interrupted.
"No Dean it isn't! The Herobrine is going after Dean first." Sam continued.
ANNOUNCEMENT
So, Dean is the first to feel the Herobrine's wrath, can Sam and the others save him and stop this fiend? Who knows?