Plasma

Plasma  was a dangerous, but limited Elemental Power involving ionized gas in the Matoran Universe. It was one of the rarer elements, and was used infrequently by Toa, Turaga and Matoran. Toa of Plasma had near perfect control of the element, however they were conflicted in the use of their power.

Plasma could damage and melt nearly any substance, inorganic or not, making them extremely deadly in combat, but this made it difficult for them to fight without killing. Addtionally, plasma did not exist in a raw state outside of Fire and Lightning, forcing Toa of Plasma to rely entirely on their own elemental energy reserves.

Su-Matoran would have simply had a(n/a) passive ability(ies), while Turaga of Plasma had powers somewhere in the middle.

All users of this element would have had a secondary passive ability, with unconfirmed possibilities including a resistance to electromagnetic forces (Heat/Electricity) and/or the ability to see in the electromagnetic spectrum.

Examples
(Note; Controlling the element would only be possible using a Being's own recently created plasma, or an enemy's. A Toa of Plasma would be unable to control Fire or Lightning. / Unconfirmed > However, they might be capable of absorbing those elements. )
 * Creating plasma.
 * Controlling plasma.
 * Absorbing plasma.
 * Incinerating objects.
 * Slagging objects.
 * Unleashing a Plasma Nova Blast - (Toa-exclusive)
 * Increasing or decreasing the temperature of plasma.

Combinations
With all wielding different elements, six Toa could combine their powers to create a Protodermis cage, capable of sealing away powerful beings, such as the likes of Makuta Teridax, or the Bahrag Queens. Freeing trapped entities required a shard of the prison to be charged with the same elemental powers used to construct it. [1]

Beings other than Toa could not combine their powers at all, making them the only ones able to do so.

Known Users
These beings were wielders of the Element of Plasma:
 * Pahrak-Kal - (Formerly; Destroyed)
 * Kraata and Rahkshi of Plasma
 * Most Makuta
 * Takutanuva - (Formerly)
 * Toa of Plasma
 * A Toa of Plasma in Dark Mirror
 * A Toa of Plasma that was attacked by Zaktan
 * Su-Matoran - Inaccessable
 * Turaga - Reduced
 * Skakdi of Plasma - only when used with another Skakdi

Trivia

 * All Matoran, Toa, and Turaga of Plasma are male.

Plasma