[3] After he had stolen his power suit to prevent it from being used as a military weapon, Heather discovered his secret and decided to share it with him.

[4] After Department H is dissolved, Heather brought the members of the disbanded Alpha Flight together to battle Tundra of the Great Beasts.

With this initiative creating a spectacular success, the team decided to continue operating Alpha Flight as an independent group.

She rejects these powers when all involved learn it would come at the cost of humanity's creativity and the lives of anyone magical, such as her two friends Shaman and Snowbird.

[19] Heather and James have a baby (an as-yet-unnamed girl) and travel with their child and several other members of Alpha Flight to return a clutch of Plodex eggs to their homeworld.

In addition, an accident brings temporal copies of most of the original Alpha Flight – from a time before her husband's "death" – to the present.

Alpha Flight (the team consisting of Sasquatch, Guardian, Vindicator, Shaman, Major Mapleleaf II, and both Pucks) are brutally attacked by a new villain "the Collective".

[21] During the Chaos War storyline, Vindicator (alongside Guardian, Shaman, and Marrina Smallwood) are among the heroes that return from the dead after what happened to the death realms.

[22] During the Fear Itself storyline, Vindicator helped Alpha Flight in fighting Attuma in the form of Nerkodd: Breaker of Oceans.

[28] During the "Fall of X" storyline, Heather escapes confinement and after leaving Claire with Marrina and Walt Samson, assumes the identity of Nemesis and rejoins Alpha Flight to help protect mutant refugees from Department H, who has allied with Orchis.

[29] Guardian eventually discovers Heather's identity after she is grievously wounded and falls unconscious following a battle with Department H's Box Sentinels.

Heather ultimately survives but falls into a coma and is taken into Department H's medical care while James and the remaining Flight members are arrested for treason.

The suit can absorb heat into its power cells, provides its wearer with a personal force field, and enables feats of super-strength and super-speed.

While as Nemesis, Heather wields the mystical sword Scell, granting her ability to teleport herself and others[32] and superhuman durability, protecting her from serious injuries.

She was recruited to Alpha Flight as the team's muscle and medic, and shortly afterwards met Wolverine when he was found wandering the wilderness after escaping from the Weapon X facility.