Your trained or bought horses shouldn't get destroyed automatically, unless damaged in the games. I don't know if I'm misunderstanding you here.

But sure, "bad" horses ("roncins", "ronzini", "rocinantes"...) given provisionally to rulers for wargames are destroyed, because they are not actually 'theirs' (weren't trained, weren't bought) and they have 0 value.

They are given for immersion (to show in the GUI), since these are all warhorse games, and many participants can't even have them - non-rulers won't ever equip artifacts unless forced to.

It's not because horses are needed, since these give +1 prowess to everyone.

About skills: wargames have almost* the same behavior as Vanilla duels. I'm quite sure it's not prowess only what counts, but I agree I could maybe add relevant traits there, like tournier/chowgan player or groom traits, and things like that. I haven't done that because I think this would actually duplicate chances of winning (prowess/martial + the trait itself).

*It's not the same because I eliminated some "quick death" movements to avoid weirdness in games. This sometimes makes games somehow boring, with only one option.

Any ewuipped horse I have does not get re equiped after the game. It is still available to send to someone but the horse itself is no longer in my inventory nor equipped properly.

I attempted to recreate the bug but this time the game used my equipped horse opposed to adding the basic one. May have been caused by another mod being active.

@Aschenbrenner Glad to hear, thanks for the follow-up