Mr. Smite

Ironclad Cove
Follow the docks to Mr. Smite at the boarding ramp before climbing the ship. Cookie is an optional lower-deck detour. Continue upward through Captain Greenskin, clearing his group before approaching Edwin VanCleef above. After VanCleef, leave through the passage behind the ship and meet Alba outside if you planted the forge explosives.
Mr. Smite
Mr. Smite's stomps and weapon changes interrupt the group before renewed melee pressure at the boarding ramp.
Abilities

Smite Stomp
Keep the tank healthy before the group is stunned and be ready when Smite returns from his weapon change.

Smite Slam
Inflicts 50 damage to an enemy, stunning it for 3 seconds.
Smite Slam damages and stuns its victim; prepare healing before the hit rather than after the tank drops low.

Thrash
Gives the caster 2 extra attacks.
Expect extra melee swings and use mitigation when Smite resumes attacking after a weapon change.

Nimble Reflexes
Increases the caster's chance to parry by 75% for 8 seconds.
Use spell damage during the parry buff and save melee burst until it ends.
Tank- Collect Smite and his escorts at the cleared ramp. Save mitigation for when he resumes swinging after changing weapons, when Thrash can add attacks, rather than spending it while he is away at the chest.
Healer- Keep the tank healthy before Smite Stomp prevents healing. Be ready to heal as the stun ends and Smite returns with changed weapons; Smite Slam can stun the tank again.
Damage- Remove Smite's initial escorts before concentrating on him. Continue spell damage during Nimble Reflexes, but hold melee burst until the parry buff ends.