Depending on your goal, you may be looking for a software "trainer" to apply cheats or the "Trainer" NPC introduced in the game's DLC. Third-Party Software Trainers
Wartales Cheats and Trainer for Steam - Page 6 - WeMod Community
If you are playing with DLC, a specific Trainer NPC is added to the game world. This NPC provides legitimate services that were previously unavailable: Wartales Trainer
: You can learn new traits for your mercenaries or unlearn negative ones.
Software trainers allow you to modify game memory to gain advantages. Popular options include: Depending on your goal, you may be looking
: A more technical option using Cheat Engine tables to edit complex data like companion classes, traits, and specific weapon IDs. In-Game "The Fief" DLC Trainer
: If a cheat (like item dragging) fails to register, try changing scenes by entering your camp or leaving a town to force the game to update its values. Software trainers allow you to modify game memory
: Provides a user-friendly interface with over 16 cheats, including God Mode, zero fatigue, unlimited XP, and the ability to edit gold, influence, and knowledge points.