Sylphrena

Flying, Indestructible
This creature cannot block
Whenever Sylphrena becomes tapped, target creature you control gains Vigilance until the end of turn.
{w}{u}{1} {t} : Search your deck for a card named Kaladin Stormblessed, reveal it, and add it to your hand.
"You told me once that we were going to save people. Remember that."
- Sylphrena, Stormlight Archive