Ser Lyren, Cryst-knight

Vigilance
When Ser Lyren, Cryst-knight enters play, you
may search your library for an Aura card, reveal
it, put it into your hand, then shuffle.
When Ser Lyren dies, you may exile an Aura
card from your hand or graveyard and put a light
counter on it. If you do, gain 3 life.