Aleya, Attendant of Divinities

Vigilance
{1}{b}, Sacrifice another creature: Target opponent loses 1 life and you gain 1 life. Put a +1/+1 counter on Aleya, Attendant of Divinities.
{3}{w}, {t}, Sacrifice Aleya: Creatures you control gain lifelink until end of turn and get +X/+X until end of turn, where X is the number of +1/+1 counters on Aleya.