Encarnación de la noche (Night Incarnate)
Encarnación de la noche 

Cuando la Encarnación de la noche deje el campo de batalla, todas las criaturas obtienen -3/-3 hasta el final del turno.
Evocar
Texto de reglas (Oracle, inglés)
When this creature leaves the battlefield, all creatures get -3/-3 until end of turn.
Evoke
Legalidad
Aclaraciones de reglas (en inglés)
2018-07-13
Evoke is an alternative cost to cast the spell with evoke. It can't be combined with other alternative costs, such as casting a spell "without paying its mana cost."
2018-07-13
To determine the total cost of a spell, start with the mana cost or alternative cost (such as an evoke cost) you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell remains unchanged, no matter what the total cost to cast it was.
2018-07-13
If a creature with evoke enters the battlefield without being cast, you won't have to sacrifice it.
2018-07-13
The ability that causes you to sacrifice an evoked creature is a triggered ability. Players may respond to this triggered ability while the creature is still on the battlefield.