Waka-Chaka's Gift

When Waka-Chaka's Gift enters the battlefield, secretly choose a player.
{t}: Sacrifice Waka-Chaka's Gift. Reveal the
chosen player. Destroy all creatures that player controls. For each creature destroyed that way,
they draw a card.
"When Mungo saw the goblin, he instantly ordered
ordered it detained. From the shadows, Waka-Chaka silently cursed."