Gates of Contemplasia

{t}: Add {r} or {g} to your mana pool. Scry 1.
{w}{t}: Add {r}{g} to your mana pool.
{u}{r}{t}: Two target creatures switch abilities and
any counters on them for the rest of this turn.
{3}{t}: Create a colorless 3/3 Land Construct
artifact creature token with "{t}: Add {1} to your
mana pool." Lose 1 Life.