I have no idea if anyone has suggested this before but I think there should be more ways to level up the skills of your male lion. So far, as far I've seen, you can only level them up by sharpening claws (which is only twice a day) and feeding them if you're lucky. Here's my suggestion

When you battle another person's lion add an option to level up Stamina, Strength, Agility, etc. But put them into their own category so it would look like this

Territory
Skill
Experience
Life Skills (or something like that)

My other suggestion would be for battling enemies when you're exploring. Maybe it's just me but I find a lot of those enemies hard to slay so maybe a little strength or agility bonus would help? Maybe have the bonuses correlate with different enemies? It would make for more interesting enemy fights.

If anyone has anymore suggestions feel free to put them down ^^