Hopefully all the dodge boosting will negate damage, so we'll be able to whittle the Countess down over time, and if somebody gets into trouble, Emrys/Amy's minor healing can at least get them off Death's Door (a character has to already be at 0 hp to be killed by further damage, abarring things like heart attacks).

Snuffles and Ash will start spamming their group dodge/speed buffs, Emrys/Amy will spam 'guard me!' on Sara, and Sara will be the primary damage (and boy oh boy does the graverobber do damage). I'm thinking two Men-At-Arms (Snuffles and AshburnerX most likely), a Grave Robber (Sara_2914), and an Antiquarian (You or Amy). So, I need a party with high dodge/prot that can deal damage, and I'll still need a healer in case anybody gets to Death's Door (0 hp). And they're the only class that can do that that has a heal (albeit a very paltry heal).

Now, Antiquarians aren't good at dodging, but what they can do is command another party member to guard them, and doing so buffs the dodge (and prot) stat of the person doing the guarding.

Killing hag darkest dungeon