The Queen of Serpents

Flying, Fear, Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players
in the form of Poison counters)
{p/b}{b/g}: All Serpents, Snakes, and Manticores gain
Infect and get +1/+0 until end of turn, use this
ability only if you cast a Sorcery spell or if a spell
or a creature card left your graveyard this turn.
She embodies death, corruption, and necromancy.