Lights of Progression

Physicality {3} (As you cast this spell, you may pay an additional {3}. If you do, it becomes an Aura Enchantment with Enchant Player)
Creatures you control that share a color with a land you control get +1/+1 until end of turn.
Whenever enchanted player taps a land for mana, a creature he or she controls that shares a color with it may get +1/+1 until end of turn.