as hard as I try I cannot beat the top battle. the enemies just keep replacing. does anyone know exactly how many there are or do you have any tips on how to beat them? thanks

First thing to do is spend your level up points and your proficiency for have beter stat on your pets, after that try to have more item in blue/purple and train ari because she gona be the first to die in this fight.

train them all until they have 100% of mana and when you fight agane try to destroy the weeker (one star) in last ^-^

What pets do you have on your team? Do you have a 3-pet team? If so, make sure all your pets are the same level, otherwise the one that is a lower level is going to get killed super easily.

Once you have three pets of the same level, ready to battle, you have to set up their levels and proficiency points. Try to set up your team something like this:

"Tank" - All points on health, usually good as a light or dark element
"Mage" - All points on Agility or Intelligence, usually good as a fire, light or dark element
"Warrior" - All points on Dexterity or Strength, usually good as a wind, earth, or ice element