Antidermis

Antidermis
Antidermis is a greenish-black glowing viral substance that the Piraka have used to enslave the majority of the Matoran population of Voya Nui. The Piraka have obtained this virus on Voya Nui by placing a huge crystal vat in the Piraka stronghold, which has collected the antidermis from the air. The Piraka's leader, Zaktan, is the only one of the group able to approach the vat without feeling nauseated or weak; he is also the only Piraka who knows the true secret of the virus. Zaktan is thus the only one able to fill Zamor Spheres with antidermis, which he gives to the other Piraka to use at their liking. The other Piraka have noticed that Zaktan sometimes "talks" to the vat quietly when he is alone, and does not enjoy being disturbed when doing so. If this substance is loaded into a Zamor Sphere and fired at a Matoran, the Matoran then becomes a mindless slave willing to obey any command given by the individual who enslaved him.