I remember, way back in the Second Ed, I played a guy who claimed his Thor list was unbeatable. I'd never run into a list my Greek Pantheon (Who were pretty outdated even then) hadn't been able to stand against, so I took him up on it.
Even though his list was a textbook cheese one (He had Loki all kitted out and infiltrated for start, and an Epic Bard with every squad of Bearded Raiders that would've flattened conversion lists at the time), they still dropped like flies to Zeus' Bolts of Wrath, and made the terrible mistake of letting my Mortal Legends squad (Hercules, Achilles, Odysseus) chariot drive right up to cut down his Saga-keeper to eke out a win. Never before have I seen such neckbeard disbelief. I think he still plays though, despite the lack of new codex in forever.
Good times, good times. Shame they discontinued the Pantheon after that (Though I will admit they were broken as hell, and probably deserved it).