Goi Igami, the Spring Hare

Ward —Sacrifice a nonbasic land.
When Goi Igami, the Spring Hare leaves the battlefield, tap each land then empty all mana pools.
{8}{u}{u}, {t}, Discard a card: Each player shuffles their hand, graveyard, and all permanents they own into their library, then draws seven cards. Each player's life total becomes 7.