Yaegarion, the Obscure Land

{t}: Add {1} to your mana pool. If this mana was
spent to cast a multicolored spell, you gain 2 life.
{4}: Tap all other permanents. They don't untap
during their controller's next untap steps.
{t}: Draw a card for each tapped permanent on the battlefield. You lose 1 life for each card you drew
this way.