whats the point of battledome and leveling those stats? do you get any rare items out of it

how do u get a jetsam or krawk morphing potions

leveling the stats make you look like a badass and from what i can remember battledome gives you trophies etc

thats true. badass.

also the morphing potions, if you look them up on jelly neo(which is a great site) item database, depending on which morphing potion you are after, there are several for jetsam and krawk:
all these are available for purchase

krawk:
green,red, yellow, blue, camouflage, lost desert, and pirate- all available in shops, trades, auctions

jetsam:
green, red, yellow, blue, spotted, striped, baby, and plushie - all available in shops trades and auctions

prices can vary but jelly neo's approximate price for the blue jetsam morphing potion is 700,000 np and the blue krawk morphing potion is 14,500,000 np