Encantamiento
Constelación — Siempre que el Vínculo celeste u otro encantamiento entre al campo de batalla bajo tu control, exilia el permanente objetivo que no sea un encantamiento. Regresa esa carta al campo de batalla bajo el control de su propietario al comienzo del próximo paso final.
An Aura spell without bestow that has an illegal target when it tries to resolve won't resolve and will be put into its owner's graveyard. It won't enter the battlefield and constellation abilities won't trigger. An Aura spell with bestow won't be countered this way. It will revert to being an enchantment creature and resolve, entering the battlefield and triggering constellation abilities.