True Resurrection
You touch a creature that has been dead for no longer than 200 years and that died for any reason except old age. If the creature's soul is free and willing, the creature is restored to life with all its Hit Points.
The key here is, "If the creature's soul is free and willing.". I believe in the case of the MC and companions, their souls, via shadow magic, are no longer free.
If that was relevant, then it wouldn't be able to bring Gale back.
