True Paladin Hammer
Given as a reward from the Oathbreaker Knight for killing Frog Pal (Sol killed an evil one which was a loophole in the quest)

To hit: +STR+Proficiency+4; 5ft; Magical 24d12 Bludgeoning

Can come back to you if thrown
60ft line, 5ft thick, DC 20+Proficiency+DEX, DEX Save, Twice per hit
Magical 24d12 Bludgeoning and 25% Force that ignores any resistances or Immunities

Oathbreaker's Blade
Given to the one that was worthy of it due to the passing of the Oathbreaker Paladin from the Ethereal Keeper

To hit: +STR+Proficiency+4; 10ft; Magical 10d20 Slashing+10d12 Necrotic that bypasses any resistances or Immunities

Vengeful Aura: While attuned to Oathbreaker's Blade, you emit an aura of dread in a 10-foot radius. Enemies within this aura have disadvantage on saving throws against being frightened.

Soul Drain: When you reduce a creature to 0 hit points with this weapon, you gain temporary hit points equal to the creature's Constitution modifier + your Charisma modifier (minimum of 1 temporary hit point).

Dark Command: As an action, you can target one creature you can see within 60 feet of you. The target must succeed on a Spell DC Wisdom saving throw or be charmed by you for 1 minute. While charmed, the creature regards you as a trusted friend and ally. Once you use this ability, you can't use it again until you finish a long rest.

Unholy Resilience: You have resistance to radiant damage while attuned to this weapon.