Lilith, Beloved Of The Prince

When Lilith, Beloved Of The Prince enters the battlefield, gain 4 life.
If Prince Lionel is also on the field, Lilith, Beloved Of The Prince gains +1/+2.
{w}{w}{w}{w} Target player gains 2 life.
Some say she's sleeping with the prince of Rosemont, but can you really believe the words of
an imprisoned assassin?