Hello,
A choir of dawn pipers can use their elemental fonts to absorb a part of the Material Plane into the First World by creating a reality siphon. To open a reality siphon, at least three dawn pipers must perform a musical
ritual lasting 8 hours. Each piper must have its own elemental font prior to the start of the ritual, and no font can be more than 400 feet from another. At the conclusion of ritual, the reality siphon appears, creating a 10-footradius hemispherical area of twisted reality that functions as an antilife shell (CL 9th). After the ritual is complete, the pipers are
free to take other actions until the reality siphon fully manifests . Over the course of a week, t h e reality siphon gradually expands until it
encompasses a 400-footradius area, at which point everything in the area encompassed by the reality siphon is fully subsumed First World.
Are there a mean to reverse the part of the Materiel Plane that is in the First World ?
This part will come in other place in the Material Plane.
At the GM's discretion, certain more powerful choirs may have additional spelllike abilities, similar to the abilities a hag's coven possesses .
What could the abilities a hag's coven be ?
Thanks for your future answer.
are you asking what the abilities of a hag's coven are or what abilities that are similar to a hag's coven could the choirs have?
Yes, for the second proposition.
might be best to ask in the AP specific forum