Polymorph Cantrip The spell fails if its

The spell fails if its area includes a larger creature or more than nine creatures

it can't willingly move away from the target

It disappears into a pocket dimension where it awaits your summons

covering about 50 miles per 24 hours for a flying messenger

Polymorph Cantrip The spell fails if itsThis spell transforms a creature that you can see within range into a new form. An unwilling creature must make a Wisdom saving throw to avoid the effect. The spell has no effect on a shapechanger or a creature with 0 hit points. The transformation lasts for the duration, or until the target drops to 0 hit points or dies. The new form can be any beast whose challenge rating is equal to or less than the target's (or the target's level, if it doesn't