Innistrad, Plane of Shadows

—The game starts as day. At the end of a turn, if
no spells were cast, the game turns to night if it
was day, and to day it it was night. If more than 5 creatures died this turn, next turn will be a blood
moon night and the turn after that will be reset to
day.
Day: Non-human creatures have haste and lifelink.
Night: Humans are werewolfes and get +2/+2.
Blood Moon: Damage is doubled (added onto
night's affects).