Spectral Scythe is a Weapon that could be obtained from 2018's Harvest Carnival. Spectral strike is currently the most powerful dark spell, as it deals high damage, has unlimited charges and its drawback can be removed.
The best way to remove its drawback is by getting the NPC-Traveler to add one (or more) sockets to your scythe and socketing a Weapon Crystal: Spectral to it. This will increase its dark damage and always activate its blessing buff, making the poison mist debuff harmless to your own Warrior.

Combat Stats

  • Required Level: 10
  • Slot: Weapon
  • Ability (Spell): Spectral Strike
    Deals a large amount of dark damage to your opponent. Combatants with "Ethereal" gain a large amount of Dark Resistance for 2 rounds. May apply poison on one or both combatants.
    • 440-600 Dark Damage
      • Has a chance to inflict Poison Mist Effect on
        either combatant, which deals dark damage
        every turn. Lasts 4 Turns.
      • If your Warrior has the Ethereal buff, they also gain
        the Ethereal Blessing buff, which raises their dark
        resistance by 1400. Lasts 2 Turns.
  • Stats
    • Agility +1
    • Strength +2
    • Speed +1
  • Sockets: 0