The Ashen Empire
This shortsword seems ordinary save for the glowing, arcane runes along its blade.
This weapon gives +1 to attack and damage rolls.
As a reaction, when a spell is targeted at you, you can attempt to absorb the spell into the blade. Roll an arcana check (DC 10+spell level). On a success, the Runeblade stores the spell. The spell remains within the blade for 24 hours, after which it dissipates. However, while the spell is stored, you can make an arcana check (DC 10+spell level) to release the spell at another target.
This only works with single-target spells.
This ability can be used once a month.