Trying to finish the achievements before the shutdown of the game on April 1st, will dump here the solutions I’ve found so far with screenshots. Please contribute if you can.
 
 

Chapter 01 – Act 02

01 – Battle

02 – Battle

03 – Battle

Chapter 01 – Act 04

01 – Battle

Chapter 02 – Act 01

01 – Battle

02 – Battle

03 – Battle

04 – Battle

05 – Battle

 
 
This is all about Lucadian Chronicles – Solutions for Battles in Campaign; I hope you enjoy reading the Guide! If you feel like we should add more information or we forget/mistake, please let us know via commenting below, and thanks! See you soon!