Aiedail Seithr

Whenever a creature you control is put into a graveyard from play, put a 1/1 white Spirit token
with flying into play.
{b}{t} Sacrifice Aiedail Seithr: search your library
for Theyna Frethya, reveal it, and put it
into your hand. Then shuffle your library.
"The smile she gave us, wasn't one from mother to
child: it was one from predator to prey."