Acidic Overdose

Draw cards equal to the amount of lands you
control, then you may cast a spell from your
hand without paying the mana cost, if that
spell was an artifact, it enters the battlefield
tapped and then you gain a life for each
artifact on the battlefield. If this card was the
first spell cast this turn, you lose life equal to
the amount of lands on the battlefield.
You cannot win or lose the game this turn.
Things were not quite what they seemed.