Lunar Phases allows Moon Knight's abilities to change depending on the moon's phases.
Waning Crescent: As the Moon wanes, there's a chance to gain Fury. The chance increases nearer to the New Moon.
New Moon: In the darkness of a New Moon, gain increased chance to evade attacks. His base Attack is also at its highest.
Waxing Crescent: As the Moon waxes, there's a chance to boost Critical Rate. The chance increases nearer to the Full Moon.
Full Moon: Under the light of the Full Moon, there's a chance that Critical Hits inflict Stun. In addition, the chance to inflict Bleed is at its highest, as are his Critical Hits.