Muscovy guide

This guide is based on dasvira comments on https://forum.paradoxplaza.com/forum/threads/m-t-quick-questions-quick-answers.744363/post-28221187 Mod version: Alpha 13

Disposition
Muscovy starts as a vassal of White horde and has several tributries and close tributaries. There are almost no reforms and poor state reach. On the bright side: it has missions to form Russia, which give free cores and claims.