Xeyala, the Shadow

Shadow

Whenever you commit a crime, you lose 1 life and
draw a card. (Whenever you cast a spell or activate
an ability that targets an opponent, or their stuff
(spells, permanents, or graveyard) you are
"committing a crime".)

{1}{b}{b}, {t}, Discard a card: Destroy target creature
with mana value less than Xeyala's power.