Powers: Crucible can alter the probabilities around a person, causing bad luck for the recipient. The result and magnitude is random but usually results in foiling whatever the recipient is doing.
Bio: Kaitlin was among the Bloodpool candidates, when she was told that she was a nu-gene-positive. With the help of Dr. Vanessa Wayland, from the Youngblood training program, she was directed towards David Proctor when he had to reform the New Men during Quamtum's attack.
After the threat from Quantum had been removed, Crucible did not join the New Men but joined Brigade instead. When Battlestone was believed dead, Crucible looked through his memorabilia. Among the photos she found a picture of her mother being married to Quantum, and realized that Quantum had to be her father.
Crucible was killed by Crypt in his attack on Brigade.