Matthew, Glissa's Assassin

Deathtouch, Reach
Whenever another creature you control with
power or toughness 2 or greater dies, proliferate.
At the beginning of your upkeep, you may create
a 1/1 Black Human Assassin creature token with
infect. (This creature deals damage to creatures
in the form of -1/-1 counters and to players in
the form of poison counters.)