Alice Glass, Whisper and Roar

Stillbirth— Whenever a source you don't control
deals damage to you, you may discard a card. If
you do, that source's controller loses 2 life and
you get an experience counter.
The Hunted— {2}{b/g}, {t}: Choose one. Where X
is the number of experience counters you have:
•Target creature gets +X/+1 until end of turn.
•Target creature gets -1/-X until end of turn.