Baron

A general principle in Darkest Dungeon is to reduce enemy actions as much as possible. The Baron fight is an extreme example of this: it is highly encouraged to proceed methodically, dealing with one egg/enemy per round, then once the Baron is revealed, concentrate all attacks on him in order to trigger the next act as quickly as possible. With enough burst damage, the Baron and his minions should get very few turns to act before the battle is over.

If the Baron is close to a health threshold (66% or 33%), it may be useful to open an egg or two in order to heal. However, this choice must be very carefully considered, since the damage output of the Baron and his summons can greatly exceed the team's recovery capabilities. In particular it is highly discouraged to open all the eggs at once.

An action-efficient approach is to set up buffs at the beginning of each act while the Baron is still hidden. Enemies contained in eggs are fairly weak, so the party will have usually have extra turns left over after dealing with them but cannot use those turns to heal. Skills like the Leper's Revenge, the Plague Doctor's Emboldening Vapors, or Jester's Battle Ballad can greatly boost the team's damage output. In normal combat these buffs take too long to pay off and would be considered wasted turns; however in this case they allow the team to burst down the Baron more quickly when he appears, so they effectively function as extra attacks against him.

Riposte is an especially effective example of self-buffing: the Baron has multiple actions per round and Crowd Pleaser hits all 4 heroes, so will trigger extremely often. Both the Highwayman and Man-at-Arms can also buff themselves with Tracking Shot and Command, respectively, to mitigate the low ACC of attacks. With proper setup, a single Crowd Pleaser can cause the Baron to take 50-60 damage from , causing him to enter the next act much more quickly.

As with the rest of the Crimson Court, Bleed attacks are effective, especially since they transfer their effects to enemies hidden in the eggs.

Having Crimson Curse on damage dealers can be advantageous. A hero can drink the The Blood to trigger Bloodlust, then drink another vial to buff themselves further; combined, these buffs cause them to deal almost double damage for a short period of time.

One last approach is to stack DODGE. As with much of the rest of the game, stacking enough DODGE buffs and trinkets can cause the Baron to miss nearly all of his attacks, completely trivialising the battle.