Original sentence: After two more encounters with the Thunderbolts Tiger Shark - once again in human form - joins a villainous version of Deep Six to conquer Atlantis,initially successful the villains are eventually defeated, with Tiger Shark quickly defeated by cosmic hero the Silver Surfer
Edited sentence: After two more encounters with the Thunderbolts Tiger Shark - once again in human form - joins a villainous version of Deep Six to conquer Atlantis, initially successful the villains are eventually defeated, with Tiger Shark quickly defeated by cosmic hero the Silver Surfer