686 cards found matching is mono color

Lucian, Merciless
Lunar Boon
Lux, Crownguard
Lux, Illuminated
Machine Evangel
Maddened Marauder
Maduli the Gatekeeper
Mageseeker Investigator
Mageseeker Warden
Magma Wurm
Malzahar, Fanatic
Marai Spire
Marching Orders
Mask of Foresight
Master Bingwen
Master Yi, Tempered
Master Yi, Unstoppable
Meditation
Mega-Mech
Megatusk
Mind Rune
Mindsplitter
Minefield
Minotaur Reckoner