XP Into Mastery
A mod that lets you spend 100 XP to gain 50 Mastery in your chosen doctrine track, with a 60-day cooldown.
The AI can also take these.
A compatible version for Equestria at War: https://steamcommunity.com/sharedfiles/filedetails/?id=3616164498
If you have ideas for improvements, let me know in the comments.
