Forbos, Firewing Over Ashes

Flying, haste
When Forbos, Firewing Over Ashes enters the battlefield, each opponent creates a 2/2 white
Human Knight creature token with vigilance.
Whenever Forbos, Firewing Over Ashes attacks,
defending player may choose to sacrifice a Human creature he or she controls. If they do, prevent all combat damage that Forbos, Firewing Over Ashes
would do this turn.