Ocean Lord's Influence

Enchant Land
Enchanted Land has "{t}: add {w}, {u}, or {b} to
your mana pool"
Enchanted land has "{t}: You look at target
players hand, then choose a card, that player
reveals that card and takes damage equal to
the card's CMC"
"It is so ironic that he has the power to crush buildings
with a finger, but chooses to exert his influence in the
subtlest of ways" -- Chang'Wa, Lunar Mistress