Ruins of Once Was

Ruins of Once Was enters the battlefield tapped
unless you discard a card.
Creatures you control "{1}: Learn (You may reveal
a Lesson card you own from outside the game and put
it into your hand, or discard a card to draw a card.)
{t}: {w/b}, {r/w}, {g/u}, {u/r}, or {b/g} to your mana pool
A place for young mages to see the past, present, and
future of what Once Was