Guardian Silva

Flying, haste, flash
This creature cannot be on the field if Lily, the
Priestess of the End is not on the field as well.
When Guardian Silva enters the battlefield, you can
send one creature you control to the graveyard and
draw one card in your library.
{2}{b}, {t}: Sacrifice one creature you control, your
creatures gains +1/+1 and flying until end of turn.

"Siegrid... I'm sorry... for everything..."