Well, I only saw today that the battle system has been updated. I´m in the middle of tier 3 now with about 750 points total, and don´t have the CSC atm for that many autotraining sessions to get to tier 4.
My "current" set is: Malevolent Grimfruit, Shrine of Appollonia, Shear Sword, Super Shield, Fairy Lance and Mystical Star Shuriken.
Put away MG, Shear Sword and MSS for being tier 4, what could I add? Is there anything comparable to MG or any other attacker like Shear Sword, getting stronger with every hit?