Alela, Broken by Phyrexia

Flying, Infect, Vigilance, first strike (Creatures
with infect deals damage to creatures in the form of
-1/-1 counters and to players in the form of poison
counters. If a player has ten or more poison counters,
they lose the game.)
During your upkeep, create a 1/1 black faerie
rogue creature token with flying and infect.