A member of the Legion of Substitute Heroes
Dag Wentimis the real name of Stone Boy. Stone Boy is
a native of the planet Zwen. Because Zwen has a slow
rotation, nights on Zwen are half a year long. To compensate
for the long nights, natives of Zwen have gained the ability
to turn themselves into a stone-like state of suspended
animation. While in this state, natives of Zwen cannot move and
weigh close to a ton. Dag came to Earth and, calling himself Stone Boy, demonstrated his power for
the Legion of Super-Heroes. The Legion ruled that his power
was too passive and turned him down for membership in the Legion.
Stone Boy and the other candidates rejected by the Legion that day
formed their own group called the Legion of Substitute Heroes. The Subs,
as they were called, aided the Legion on a number of occassions.