Zeitgeist - Deus Ex Machina
Blade of the Ancients
This sword is a macahuitl, a shaft of wood that encased saw-toothed obsidian blades long its edge. Within the crystals, energies from countless worlds crackle. When you attack, the wood turns briefly to gold.
Aura moderate conjuration; CL 8th
Slot none; Weight 8 lbs.; Price 32,350 gp.
An exotic +1 aberration-bane greatsword, the blade of the ancients is capable of summoning forth additional elemental power. On a successful hit, the blade deals an additional 1d6 points of elemental damage. This damage can be acid, cold, electricity, or fire, as chosen by the wielder prior to rolling damage.