The Revenant gains an innate Sword attack, the Umbral Sword. This deals 8 Cold damage and each successful hit reduces the target's MP by 0 to 4 points, regardless of whether the target is a character or a pet.
Half of the MP drained from the victim is granted to the Revenant. If the Revenant is at full MP, they gain that amount in HP instead, but cannot exceed their maximums for either quantity.
The Umbral Sword manifests as a shadow, with a frozen touch suggesting that it comes from beyond the veil of death. Whilst a Revenant gains a measure of power by draining foes, presumably the rest goes to Hashaa as a tribute to Her pact with the Revenant.
The Revenant may also use this frozen blade to leave writing in supernatural ice on rocks and walls.