Valkyrie

Flying
Whenever a non-token creature dies, you may
pay {1}{w}. If you do, create a 2/2 white Valkyrie creature token with flying and "{w}, Sacrifice this creature: Prevent all combat damage that
would be dealt this turn."
"We are Valkyrie. We seek brave warriors to guide to Valhalla and... Do we want to be more human? Big sister Brynhildr fell in love... is that human?"