When you meet Koris in the beetle forest
for the first time he says he'll train 
you to become a better cacoon master. In
the list select "Capturing". Do exactly 
as he tells you and he should give you 
Apatron. Base your water minion off him 
to get the most powerful water based minion.


20 mugwart:

When you first meet Koris he'll ask you to 
be trained by him. Now click how to battle.
He'll give you a mugwart. In training mess up
on purpose. Now click how to battle again and
he'll give you another mugwart. Repeat until 
you reach 20 mugwart (highest amount of 
mugwart).