There has to be some way to track how far you are with Mastery Challenges.
For instance, I’m currently on Divinity (Rus Mastery) and TBH, I’m sure I’ve killed more than 20 enemies with units affected by Saint’s Blessing. But it still just remains there, not completed yet.
If this could show 15 out of 20 enemies killed somewhere, it would be a massively appreciated addition, because then I can actually see if what I’m doing is actually working.
For those interested: I am attacking a unit with my Warrior Monk, waiting for surrounding units to buff, and then killing that unit with the buffed units.