Nyfxos, Will Puppeteer

Whenever Nyfxsos, Will Puppeteer is dealt
damage, put that many cards from the top of
your library into your graveyard instead.
{u}{b}, {t}: Target player reveals their hand.
When Nyfxsos, Will Puppeteer leaves the battlefield, return target instant, sorcery or
creature card from your graveyard to your hand.
"They can keep the dead. I'll keep the rest."