Kamek

Kamek is magikoopa that works for Bowser as both a faithful subject and wizard. He originally helped gather upon Bowser's most trusted troops to stop the WC's from getting to them, and he helped him think for creative schemes to activate the prism. Kamek apparently has a high rank in the Koopa Kingdom army (or Koopa Troop), since during this time he both raised Bowser when he was young and took control of his army until he was old enough.

Appearance
Kamek tends to always wear a light blue cloak and a wizard hat, obviously giving off signs that he is a wizard. The cloak drops down to his shoes, covering a large amount of his body, with only his face being the most visible part. He wears black glasses with lenses that make his eyes not visible. Kamek also tends to fly around on a broomstick and that's his most efficient way of transport.

Powers
As Bowser's right-hand man and leader of the Magikoopas and secondary adviser for the villains in Worlds Collide, Kamek has immense (and perhaps unparalleled) magical powers, which he has demonstrated on several occasions. He can use his magic for a multitude of different effects, such as the usual magic bolt, being capable of turning rubble into living enemies, damage his foes, and way more. He also has surprisingly more powerful feats of magic is the ability to change the landscape to make battles more difficult, and even alter the size of living beings, mostly enlarging foes to gigantic size, he tends to uphold Bowser with this ability the most astonishing example to date, growing to such size causing him to be immune to fire or lava, to a certain extend. He can also use this ability to shrink his foes, but he mostly uses the former.

In Worlds Collide's case, Kamek uses the best of his ability to stop Junior and the WC's from obstructing him and Bowser's path to success. He mainly uses his wand powers to create sentient beings out of small parts of the planet's minerals in the dirt, which are designed to kill opposers. He also casts a spell putting the Gems into a trance, or a temporary sleep, as his wand was partially powered by the prism to liberate more powerful attacks. This power gets liquidated though, as Steven's speech to Junior emotionally moved the part of the prism controlling the wand, disassociating it from its concentrated power and disabling the sleep power.