Orrgo the Unconquerable is from Strange Tales 90 and some of the events there are depicted on page 2 of DEF2 9.
While Strange Tales 90 seems like his first visit to Earth, the flashback on page 1 of DEF2 9 shows him in prehistory.
Suggested additions:
ORRGO
*DEF2 9-FB add
*ST 90 add
DEF2 9
Orrgo the Unconquerable
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