From the Super Mario Wiki
The top of the Orb User's staff has an orange head with two black eyes and two large horns. In between the horns is a glowing magical orb that hovers above the Orb User's head. This orb is the source of the monster's magic. Using this powerful orb, this strange creature can use a wide variety of magical spells, primarily fire-based attacks. These spells include Flame, Flame Wall, Bolt (a weak wind-aligned magic attack) and the curative technique Recover.
An Orb User has an extremely high defense rating, making most attacks ineffective (and only causing one HP's worth of damage). Fortunately, an Orb User only has eight Hit Points, offsetting its high defense and recovery spells.
Orb Users are relatives of the more powerful Orbisons.
For some unknown reason, Orb Users hate Kinklinks.
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