Conjunction of the Spheres

Enchant Land
When Conjunction of the Spheres enters the battlefield, draw a card.
Whenever enchanted land is tapped for mana, its controller adds an additional {b}{r}{g}.
"There are scores of learned works, dissertations and treatises about this magical cataclysm from about
1,500 years ago. Because of this event, creatures never
seen before entered our world, and still do not have
their own ecological niche here."