Nice warstory, you fooled me!
And Lucario doesn't even come close to OHKOing Garchomp with ES, even after a Swords Dance. It's defenses are much, much better than people give them credit for, which is why he wouldn't have SDed anyways lol. Scarfchomp came in real handy for both of you, Blissey is just a royal pain in the butt!
Looks like Scizor is such a great Garchomp counter...it came into Outrage and promptly got destroyed.
PS that scarfchomp was probably Jolly, which is why it didn't just instantly OHKO Blissey like you seemed to be expecting it to.