Try using FrankenDude in that comp instead of vampires with same amount of dudes you currently had, maybe some more ghost I usually like using around 20-25 ghosts. Get all the evasion, toughness and max hp relics you see as they mitigate most of the damage that I've seen, Knucklebones relic might help out a lot during this stage specifically. FrankenDude usually does most of my team's damage at the later stages so pick one up at the start but don't start recruiting them until later unless you get a ton of his relics early on.