Drop: Jademist Dancer 
Zone: Timeless Isle
Approximate Drop Rate: unknown
80% Hit Chance
Blasts the target with steam, dealing 551 Aquatic damage.
90% Hit Chance
Rakes the enemy with jade claws, dealing 472 Magic damage.
Reduces up to 98.5 damage from each attack against you.
Lasts 5 rounds.
Heals you for 394 and increases your team's hit and critical strike chance by 50% for 2 rounds.
Poisons the clouds with acid, dealing 177 damage to all enemies. The acid quickly disperses and calls down a cleansing rain for 9 rounds.
During a cleansing rain, the duration of hostile damage over time effects is reduced by 1 round and Aquatic abilities deal 25% more damage.
100% Hit Chance
Causes a water geyser to form under the enemy team.
After 3 rounds, the geyser erupts, causing the current enemy pet to take 689 Elemental damage and be stunned for 1 round.
Elementals ignore all negative weather effects.
50% from Aquatic abilities
33% from Mechanical abilities
This one took me a lot of time, two months of trying. I agree with some of the other posts, best to do this in small quanities. Have been going back and forth between the beach and the cavern. Gotten nothing in the cavern as yet. The Mobs aren't bad one on one but when they swarm you, you are doomed. Seems to be a very low drop rate. The pet is very cute. Quite worth the trouble.
I had really bad feeling about this one since im on Kazzak and the server has super duper high population. Farming on the Timeless Isle can be really frustrating. Thats why I decided to farm this one in small doses. So I started every now and then, usually late at night to have more chanses of finding the Dancers alive. Then I did some farming yesterday evening and some today, in the afternoon. I think overall I have killed around 100 Dancers and finally today I got my tiniy little one =)
This little bugger is so elusive! I have killed over 400 Jademist Dancers and no pet yet. I try to farm during non-peak hours to avoid any competition because the re-spawn is a little slow. I'm not going to give up though, I want this cutie!
My favourite pet added in 5.4. Get the 317 speed one. Rain dance is a really powerful, but less obvious, move.
Finally got one after two full days of farming them! Don't give up!
Today being the one month anniversary for my wonderful girlfriend and me I went farming for these pets didn't have my hopes up because R N G random number generator has never been kind to me. Got him all buffed and set off I went to kill these things about I guess maybe an hour into it one dropped I was like yes my baby gets an anniversary gift battle pet decided to try my luck one more time and lo and behold the second dropped.
Got 2 of this pet.....the 2nd one is the best with 317 speed rating....:)))
I have spent a total of 12 hours so far famring for this pet with nothing. :/
I farmed up two of these and I'm working on a third. I've heard some people say they've killed hundreds without a drop, but from my personal experience, within about 2 hours of farming I was able to get one to drop and then another to drop the next night.
Just the cutest girl <3 Killed about 30 dancers, my gear isn't good so I died many times. Keep at it, you'll get her eventually!!
killing around 300 monsters and finally drop this pets. I'm happy to see my effort pays.
I have been on the beach killing Jademist Dancers for days. I was about to give up when one more spawned so I figured "why not just kill it" and am I glad I did cause I am now the proud owner of a baby Jademist Dancer :-)
over 300 kills and still no luck... Great way to get your 20 elite spaws during the day while farming
I got mine in roughly 14 kills. It was a surprise to me since the Ominous Flame has still not dropped for me with hours of farming. Guess I got lucky on this one.
I got mine after a few more kills than that AND my hubby was nice enough to trade it to me because I lost the roll. :) We then farmed for another one for him, but our friend won it instead, so we tried to farm up a third one...which didn't drop. (in 2 hours) He will get his, but not soon enough after giving one away and losing the roll on a second one. :(
Got mine today as a drop from the Jademist Dancer elite NPCs on Misty Strand. Dropped after I killed about 5 of them.