Joseph Stalin

First Strike, Reach, Vigilance
Communism (when creature with Communism enters the battlefield every card in the battlefield can be controlled by any player in the game)

{r} {t}: Every creature is now Human Communist and every Human Communist gets +3/+1 until end of the turn.

When Joseph Stalin dies, everything falls apart (all players in the game will instantly lose)

"What is Germany doing?" - Joseph Stalin