Valkyrie: Jane Foster (2019 series) #10

Sif, the new guardian of Bifrost, sees Tyr and the captive Thor approaching, enveloped by the darkness that is the Rokkva. She attempts to hold them off but the darkness overwhelms her….

Ten minutes earlier, Jane Foster was confiding in Volstagg her confusion and uncertainty about battling the Rokkva, a dark nothingness that she couldn’t comprehend. While Mister Horse made the acquaintance of the hellhound Thori, Volstagg led Jane to the armory to choose her armor and weapons for the coming battle—and then the horn sounded….

Tyr with the enslaved Thor and Sif arrives at the gate of Asgard to announce he is taking the throne, met by Hildegarde, Hogun, and Fandral, who call on him to release Thor. Tyr refuses and the army of Asgard attacks. Tyr uses the white staff to unleash the Rokkva, turning the skies dark and overwhelming the warriors. Volstagg leads the second wave, while Jane rides Mister Horse over everyone’s heads to take on Tyr directly. He impales her on the white stake and Jane breaks down to reassemble as Valkyrie since the staff was originally her own All-Weapon Undrjarn; she sees all of the power and knowledge held within the darkness but rejects it, using the staff to draw together and contain the Rokkva, returning the Asgardians to normal. Thor asks if Jane would have killed him back on Midgard (last issue). To save Earth, she agrees, she would—but it would have killed her too. She heads out to return the Rokkva to its cave, leaving Mister Horse in Thor’s care….