How exactly does a dispel magic tied to Unhallow work?

What he said.

Or, for more clarity:

Any Targeted effect (Aid, Death Ward) Targets the specified creature each time it enters the area of the Unhallow.

Any Area affect of non-instantanous duration (Invisibility Purge, Daylight) is constantly in effect within the entire area of the Unhallow

ncG1vNJzZmivp6x7prrWqKmlnF6kv6h706GpnpmUqHypu9ZmnLGZk6m5unnDqJysZZFisaq%2Fz56jZqWRnLakedOinJ1lpKR6trrHmqOlp6dixLC%2BymdpaWhlZ4Nw