Heroic: Freya's Sigil

Freya's Sigil is going to be one of the tougher ones, I reckon.$B$BAccording to the Archivum, the essence of the Sigil is tied to her three elder servants, Brightleaf, Ironbranch and Stonebark. Should any of the elders be harmed, the Sigil's integrity will be compromised.$B$BSparing the elders, however, means that Freya will be more powerful when you face her.$B$BWhat can I say, $N. We're stuck between a rock and hard place.