Anybody remember - or help out with these....

The Steel Claw - a hero who had an artificial hand. When he put his finger into a power source, he became temporarily invisible.

A "native! who wielded a cricket bat and whose catch phrase was "Clicky-ba crush many skulls!"

An invasion by a South American empire of Inca, who had a large weapon which directed the sun's rays and could melt enemy aeroplanes, tanks etc.
happy days...
Like others, i too then got hooked on DC comics, and still have about 250 in a suitcase in the loft. Most from 1962-1970.
D