After a recent defeat of Ultron, an upgraded version calling herself Alkhema-2 salvaged copies of the brain patterns of the Scarlet Witch, Hank Pym, Vision, Wonder Man, the Wasp, and the Grim Reaper. She used those copies as templates to build a race of Robos. A battle between her, Ultron, and the Avengers. She reportedly committed suicide in "Avengers: The Ultron Imperative" in order to begin the self-destruct sequence in the robos. However, she could presumably transfer her consciousness to another body, as Ultron has done before.
Like Ultron, Alkhema is composed of adamantium and is virtually indestructible. She has superhuman strength, able to lift about 90 tons. She fires energy beams from weapons placed on her head and shoulders. She can electrify the surface of her armor and electrocute opponents who dare touch her. Jet thrusters built within her boots allow her to fly.
-ComicVine
Key Issues & Appearances
2
Significant comic book appearances featuring War Toy