The new Ant-Man and the Wasp: Quantumania trailer showcases the superpowers possessed by the MCU’s Kang the Conqueror.
Kang’s True Power in Ant-Man 3
Marvel Studios showed the first full look at Kang the Conqueror’s full powers in the new trailer for Ant-Man and the Wasp: Quantumania.
Kang is seen shooting a blueish-white energy from his hands — with the color reflected in his eyes, on his face, and on the lining of the armor on his head and neck.

The energy appears to begin as circular discs of light, before shooting forward as more linear beams.
Given the nature of both the trailer and Kang’s character — both as introduced in Loki and from Marvel Comics — it is plausible that these blasts have some sort of time-altering ability.
This shot can be seen at the 2: 08 mark of the trailer below:
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