Rizz Mela, the Prophesied End

When Rizz Mela enters the battlefield, create Crichton, a legendary 3/3 Construct creature
token.
{2}{p/u}{p/b}: Target player reveals a card from their
hand. Rizz Mela gets +X/+0 until end of turn,
where X is the mana value of the revealed card.
{8}{p/w}{u/b}{u/b}: Exile all permanents. Exile all cards
from all hands and all graveyards. Each player's
life total becomes 3.