Veiled Shadowmage

As you cast this spell you may gain 3 life. If you
do not, this spell cannot be countered.
Ward—{3}, Pay 1 life.
{b}{b}: Tap any number of swamps and/or black
permanents. You gain that much life and target
opponent loses that much life. If you control a
number of the permanents tapped in this way,
at the end of this turn you lose twice that much
life.