Palkia was sitting on the couch and smoking weed because Palkia likes weed. He really likes it. HE REALLY likes it.

The point is, Palkia smokes weed everyday on that same couch. That couch belongs to Groudon- and thanks to Palkia, it smells like weed. Groudon doesn't like the smell of weed, so Groudon never bothers with his couch.

Arceus bought that couch for him, so imagine how annoyed he gets when he sees Palkia using it and smoking weed.


One day, in Groudon's house

Palkia (as usual) was smoking weed on Groudon's weed scented couch. He was wearing a t shirt with weed all over it. Then, a portal opened as Groudon entered his living room.
"Uuuggghhh" he groaned "Man, I'm never going to Bronycon ever again."
Palkia heard Groudon and decided to interrupt: "Hey Groudon! I made your couch smell of weed again! Doesn't it smell GOOD?"
"No Palkia. Bronies don't smoke weed."
"So why aren't you going to Bronycon?"
Groudon let out an annoyed sigh "If you didn't interrupt me, you would have heard me say that I'm never going there again WITH KYOGRE. 'Cause that guy's an embarrassment to all of my people."
"You mean bronies?"
"Yeah- hey, what did Arceus tell you about smoking weed on my couch?"
Palkia ran for the portal "4/20 BLAZE IT!" he yelled as he left the room.
Groudon groaned as he smelt the weed once again. "It's not even April. Aw man, now my couch smells like weed."

Palkia teleported to his dimension and flew to his secret weed stash.

"Oh boy!" he said with a big grin "now I can smoke as much weed as I want!"
But he couldn't: Arceus was standing right in front of the shed. And he was not happy.
Palkia tilted his head to get a better look. "A- Arceus? What brings you here?"
"Palkia." Arceus looked down upon the space pokemon. "Didn't I tell you to get rid of this weed?"
"Weed? Hehe. What weed?" Palkia fake laughed.
Arceus bit into the door and threw it away. The weed fell on top of him.
"Oh. That weed." Palkia sighed.
"Yes." Arceus said as he shook the weed off. "I told you to get rid of it two days ago. In fact, I've been doing that for a while. do you know how I am going to punish you this time?"
"Nope. Surprise me." Palkia wore a smug look on his face.
"Wipe that grin off your face. I'm going to limit your powers, make you go to a region and get you to dispose of the weed. You cannot return until you have disposed of those... things."
"WHAT!?" Palkia threw his arms up in rage. "You can't make me!"
"Yeah I can. Watch."

Arceus threw his head back before firing a laser into the door. It sucked Palkia in.
"NOOOOOOO!" Palkia cried
"Come back when you have no more weed!" Arceus yelled.