Paranin, Specter of Deluge

{1}{u/b}{u/b}, discard a card: Target player sacrifices a
nonland permanent.
{4}{u}{b}: Each player discards their hand, then
draws seven cards.
When Paranin is put into your graveyard, shuffle
your graveyard into your library.
"No storm can compare to the wrath of lord
Tetravain, even mine."