Castigation Carapace

When Castigation Carapace enters the battlefield create a white and red 1/2 Human creature
token, then attach Castigation Carapace to it.
Equipped creature gets +2/-1 and has
First Strike, Vigilance, and Protection from
Black and from Blue
When Equipped creature dies, draw a card.
Equip: Sacrifice a creature or pay 4 life