When you form Russia, apparently you get a claim on a wasteland province : r/eu4
In Europa Universalis IV, what is it like playing as Muscovy and forming Russia? - Quora
How To Become a Tsardom in EU4 – FandomSpot
Blog | 4/13 | R.S. Hunter
Europa Universalis - Russia is a behemoth in many EU4 games. As one of the few powers in range of the vast untapped lands of Siberia they have some serious growth potential.
Russia's 'Colonize Eastern Siberia' mission should give more claims in the Manchuria region. | Paradox Interactive Forums
Russia - Europa Universalis 4 Wiki
should I form russia? I'm playing as russia : r/eu4