Milvi, Rix Maadi Assassin

First Strike, Deathtouch
Whenever a creature blocks, that creature's controller loses 1 life. Whenever one or more
cards are put into exile from your graveyard, put
that many +1/+1 counters on Milvi, Rix Maadi Assassin.
"My mind is twisted, my thoughts of darkness are expressed with my words by the strokes of my blade."