While we’ve seen the Jem’Hadar a few times, we haven’t learned too much about them, which “To the Death” tries to rectify. Later, in “The Quickening”, Bashir and Dax find out some new information about the Dominion, and it is of course suitably terrifying.
Trekabout Episode 195: To the Death/The Quickening

Roy
-Hey Richard, congratulations, you made me the life long Star Trek fan with an obsession with interconnecting theories feel like a slacker. I had never considered the similarities between what we see of Iconian tech and The Guardian, but now in my head canon that’s exactly who created it.
Richard
-XD hooray! I’m now fascinated with the Iconians. I’m happy to think this means that I’m no longer the noob đŸ™‚