Origins
Kaboom first appears in Ms. Marvel issue #13. The source of her powers is the same as that of Kamran and Kamala, the Terrigen Mists. She seems to appear at random despite later being seen beside Kamran and Lineage, she attacks an area of the city where Kamala happens to be and ends up being quickly beaten by Ms. Marvel.
Abilities
Kaboom possesses the power to generate electrical energy, it also takes the form of her hair when she activates her powers. She can fire blasts of energy or hold it in the palm of her hand. It is unknown whether she has limitless energy supplies or must absorb energy from elsewhere.