Judgement Smite Anniversary Hammer

This build works well in hard mode with a good hero team. Really shines in areas with lots of undead. Good synergy with Splinter Weapon with all the multi target attacks.

Of the Necro not needed if you have Blood is Power in the party. But it will take some pressure off of your BiP. Other good options: Of the Warrior, Dervish, Assassin, Fortitude. Furious is also optional. Can also work well with Vamp, Zealous, or Sundering. Deathbane+Zealous for undead slaying.

Works with a normal hammer as well. Bring Judge's Insight if you need holy damage Crude Swing if not.

Knock lock with Judgement Strike>Belly Smash>Yeti Smash (wait until they stand back up). You can fit a Renewing Smash in there too if you’re quick enough. If you have Earthbind in your party it is possible to get off 3 of these 1s attacks before they stand up. Earthbind also bypasses knockdown immunity and is required in certain areas for 100% effectiveness. https://wiki.guildwars.com/wiki/Stun_Immunity

Optionals:

Holy Strike Stonesoul Strike Instead of Renewing Smash for less stress.

Flail is useable if you have a Hammer grip of the Warrior, and don’t want to use booze.