Underground Assassin

Syndicate 3 —{3}{b} (You may pay an additional
{3}{b} as you cast this creature spell. If you do, search
your library and/or graveyard for a creature card
with converted mana cost 3 or less that shares a
creature type with this creature, and put it onto the
battlefield tapped. If you search your library this way,
shuffle it.)
Menace
{2}{b}: Underground Assassin gains deathtouch
until end of turn. Create a Treasure token.