Subtrix

The Subtrix is an Omnitrix created by Ben after Azmuth modified the original Omnitrix(and taught him how!) so there could be more than one Omnitrix. Ben wears the Subtrix on his right arm, and is accsesible even while the Omnitrix aliens are used, and the Omnitrix can be used while the Subtrix alien is used. The Subtrix gives the user an older form(not evovlved or ultimate).

Subtrix aliens

.Null Void Guardian

.Vulpimancer

.Heat Chill (hybrid of Heatblast and Big Chill)