March of Otherworldly Light 
Instant
As an additional cost to cast this spell, you may exile any number of white cards from your hand. This spell costs 
less to cast for each card exiled this way.
Exile target artifact, creature, or enchantment with mana value X or less.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL