Salena Kyle, Catwoman

Flash
{2}{u}{b}: Salena Kyle can't be blocked this turn
and when she deals combat damage to a player,
gain control of target noncreature artifact
that player controls.
At the beginning of your upkeep, each
opponent loses life equal to the number of
artifacts you control but don't own.
"They may suspect me, but they'll never see me.
They may chase me, but they'll never catch me."