Bonebreaker, Cripple, and Stunner seem to share the same image, so you just need to rename the Bonebreaker images before putting them in the Cripple and Stunner folders.
Put the CaveLizardman_Bonebreaker.png in the Data > Characters > Attacks > Bonebreaker folder.
Put the DesertLizardman_Bonebreaker.png in the Data > Characters > Attacks > Bonebreaker folder.
Put the JungleLizardman_Bonebreaker.png in the Data > Characters > Attacks > Bonebreaker folder.
Put the CoastalLizardman_Bonebreaker.png in the Data > Characters > Attacks > Bonebreaker folder.
Put the CaveLizardman_Cripple.png in the Data > Characters > Attacks > Cripple folder.
Put the DesertLizardman_Cripple.png in the Data > Characters > Attacks > Cripple folder.
Put the JungleLizardman_Cripple.png in the Data > Characters > Attacks > Cripple folder.
Put the CoastalLizardman_Cripple.png in the Data > Characters > Attacks > Cripple folder.
Put the CaveLizardman_Stunner.png in the Data > Characters > Attacks > Stunner folder.
Put the DesertLizardman_Stunner.png in the Data > Characters > Attacks > Stunner folder.
Put the JungleLizardman_Stunner.png in the Data > Characters > Attacks > Stunner folder.
Put the CoastalLizardman_Stunner.png in the Data > Characters > Attacks > Stunner folder.