Rulings

• 2010-03-01
  Whether you had a land enter the battlefield under your control this turn is checked as this spell resolves, not as you cast it.
• 2010-03-01
  Having more than one land enter the battlefield under your control this turn provides no additional benefit.
• 2010-03-01
  The landfall ability checks for an action that has happened in the past. It doesn't matter if a land that entered the battlefield under your control previously in the turn is still on the battlefield, is still under your control, or is still a land.
• 2010-03-01
  Once the spell resolves, having a land enter the battlefield under your control provides no further benefit.
• 2010-03-01
  The effect of this spell's landfall ability replaces its normal effect. If you had a land enter the battlefield under your control this turn, only the landfall-based effect happens.
• 2010-03-01
  You must choose two targets as you cast Searing Blaze: a player and a creature that player controls. If you can't (because there are no creatures on the battlefield, perhaps), then you can't cast the spell.
• 2010-03-01
  If either target is illegal by the time Searing Blaze resolves, it still deals damage to the other target.