It wouldn't hurt to put some stat points in agility on your tank pet. I found that it made the difference for me when I was going through the main storyline.

@Ruinia

K, but the thing is I don't have very much money.....

I'll definently do that

The only advice I have is do as many missions as you can. You'll be rolling in the money soon enough.

@Creativity,

I hope you don't mind me trying to help out.

I checked out your pets, and the gear is...while the proper level, I'm not sure the stats are the best. Most is ok, but not perfect.

One thing that might be the cause of a lot of your issues is your relics. Relics...are weird. They can have perfect int and strength...but then the damage stat will be completely wrong. If you have a pet that does physical damage through abilities, a relic that gives magical damage your damage will be not very good.

So, Mystic has a relic, that while has int and dex which is good for an int pet...also gives physical damage which is BAD. Orunos has a similar issue with his relic. His relic has the physical and magic damage split, which also isn't very good. Mylilia looks to be s strength pet, but her relic does magical damage. So, you'll probably want to change those before you try again.

the race may not have much barring on the stats, but it does affect the type of attack they use naturally. Some of them are physical and some magical. Not that is matters much if you use the proficiency attacks like I do. Just make sure all the gear boosts whichever one you use for that pet. And the stats support the one you want. (Str- physical, int-magic)

Me I like a damage heavy team :/ all 3 are in their 60's so even without the special potions they don't do too bad. The main one does have a little more hp than the other two, and uses light proficiency which helps heal the entire party. Odd but it was my first pet so yeah :/.... The other two can be switched generally as one physical, and one mage with fire (who doesn't have that high of damage because I put points in the fireball attack itself to get better damage to everyone) and two physical. I used Water and Wind on the others.

The latter mains I have taken on battles for events and dungeons. They level enemies fairly quickly and easily. I do need potions on occasion. But not as many as you expect, except on bosses. They present some challenges on staying alive but for the most part they work wonders, and can even take on bosses on an okay level.

Having level 60 pets is almost a must for this dungeon xD

@Ruinia @Gumdrops @Lehana @Veron

Thank you all SOOOOOO much!!!! I followed all fo your advice and I finally beat them!!!!!!!!! I didn't even have to use a revival draght!!! Only 3 2,400 health ones and one or two 800 healths! Thank you all SO SO much!!!!!!! I restarted the dungeon and I got LUCKY! They gave me a weak group: 1 Sorcerer, 1 Assassin, and 1 Warlord! I am SOOOOOO happy!!!!!!!!!!!!!!!!!!!!!!!!!!

Congrats!! OUO

Now you have to prepare for the last boss of the dungeon though... Many tricks for beating that one... DX
I hope you can do it! OUO

Well uh, I can confirm that 3 of a kind can appear.

Specially 3 of the SORCERESSES. They went down fast but I almost did as well. Had to use pots every chance I could.