According to the Sectaurs Wikipedia entry, this line was released in 1985 rather than 1984 as indicated by the copyright on the packages.
EVIL SECTAURS OF THE DARK DOMAIN!
GENERAL SPIDRAX is the Dark Domain's evil genius and most brilliant military strategist. He has vowed to defeat Prince DARGON and destroy the Shining Realm! His weapon of choice is a poison-tipped Triceralon antenna GENERAL SPIDRAX uses as a whip. SPIDERFLYER, SPIDRAX's fiendish accomplice, is never far from his master's side. In addition to terrifying strength, SPIDERFLYER's multiple eyes allow him to see in several directions at once. Will the evil GENERAL SPIDRAX succeed? Or will Good triumph over Evil? That's up to you. Because...
NOW THE BATTLE IS IN YOUR HANDS!