Hello, i need help with my lost grove battle party light,earth and shadow currently with level up,tifa and mear max stat 101. Struggling to win battles even against the sprites at the moment...beat the tree ent boss once with a slightly different battle party but same party got defeated by the other bosses each time. How do you find the materials needed to build buildings for the barracks? Kelpie kelp x 20, morko claw x 20 ect ? I understand the spritely branch and giant tree ent branch parts.

materials are gathered as drops from relevant enemies (eg, kelpari kelp is dropped by kelpari enemies) and from chests

Could you link the pets you're using for LG in party slot 1/2/3 order? Being able to look at the pets to check gear/profs is a big part of team overviewing.

One thing I can note just from the elements listed is that you don't have a dedicated attacker element (fire, air)- Earth and Shadow are both primary tank elements, and light is primarily used as a healer (though it can also be used as a tank)