Okay, so Gladiator romped to another win, despite getting Toaded in the Dungeon, attacking the Lord of Darkness with a "measly" Str 25 in battle, getting about +8 from Followers alone
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Anyway, early on in the game, he drew the Haunt and got a stand-off. Looking at the card, I noticed the wording: "If you do not defeat the Haunt...". You don't have to be defeated by the Haunt, even a stand-off is enough, correct?
Of course, the Gladiator didn't much care about a Haunt, his ability got him through until he landed in the Chapel (had Druid Staff).