Supremacía de los Remachadores
Encantamiento
Siempre que sacrifiques una criatura, puedes regresar la carta de criatura objetivo con menor valor de maná de tu cementerio al campo de batalla girada. Haz esto solo una vez por turno.
“Do this only once each turn” refers to returning a creature card from your graveyard to the battlefield using the triggered ability. As long as you haven't yet chosen to do that this turn, all instances of sacrificing a creature will cause Riveteers Ascendancy's ability to trigger.