From the Super Mario Wiki
Kamek (White) is a white-robed clone of Kamek created to assist him along with two other clones in his third and final battle in Mario & Luigi: Dream Team. Kamek (White) wears a white cap and robe with a pale blue aura with magic circles rising from it.
In battle, this Kamek clone uses his wand to heal himself, Kamek and the other clones. He will also add to Kamek's magic ring attack by having a white ring stack with Kamek and the other clones' own rings, his being at the bottom of the stack. Kamek (White) is the third to close up his ring, it opening up at a gradual pace that doesn't get too fast, the ring then closing at a smooth yet fast pace. Mario must avoid this attack by jumping over the ring just as it's about to close. Out of all of the clones, Kamek (White) has average HP and SPEED, but has the lowest POW.