Instantáneo
Elige un tipo de criatura. La criatura objetivo obtiene -1/-1 hasta el final del turno por cada permanente del tipo elegido que controlas.
You choose a target for this spell as you cast it, but you don't choose a creature type until the spell resolves.
Note that this spell counts the number of permanents you control of the chosen type, not just the number of creatures you control. It will also take your kindred permanents of the chosen type into account.