Horse archers don't do team fights that well. With Sengoku, that's what they love to do, especially with the Daimyo inspiring all their units.

But this is where it starts to get even more difficult than against any other civilization for the Rus, because you're up against the Sengoku Daimyo. Not only do the Yari cavalry have a little bit more health and do bonus damage against cavalry, but also all of the cavalry from Sengoku move a lot faster with the Daimyo's aura.

One consideration is that by taking the deer off the map, you're removing them from the yatai as well, it leads overall into a net loss of food that can be quite significant especially against civilizations that can normally even match the deer food which Sengoku with the yatai certainly can.

Always very annoying ability for Rus to force the repair early on either on the mining camp or in this case even worse the Matsuri.

This might be a top three worst match-up to build Horse Archers against, because of the Yari Cavalry. Yari Cavalry are horsemen with bonus against cavalry and ranged; with the Takeda clan, you get 10% more movement speed, maxing out at two tiles per second.