Rebecca, Gladiator Princess

(Maarika, Brutal Gladiator)
Rebecca, Gladiator Princess must be blocked if
able.
As long as it's your turn, Rebecca, Gladiator
Princess has indestructible.
Whenever Rebecca, Gladiator Princess deals
damage to a creature, if that creature was dealt
excess damage this turn, that creature's controller
sacrifices a noncreature, nonland permanent.