Deathkiss Dagger

Equipped creature gets +2/+0 and has
Toxic 2 (Whenever this creature deals combat damage to a player, they gain 2 poison counter. Then if that player has 3 or more poison counters remove them and he or she loses 2 life)
Equip {2}
It's fun to dance with death, just don't let yourself get kissed by it.