This longsword has origins tracing back to pre-Earthfall Nidal (~10,000 years ago)
The Rosa Argentis is the blade of the Rose Knight and the ancestral weapon of the Rajanis. This beautiful silver longsword is artfully worked with a rose-and-thorns motif. It gains additional powers in the hands of a Rajani. The Rosa Argentis is a +1 striking longsword (+2 if wielded by a Rajani). The wielder of the Rosa Argentis gains a +2 bonus on all checks to Aid allies. It also grants the following abilities. Flurry of Flowers (2 actions): Make three attacks against three different enemies in range. The sword is treated as Agile when calculating MAP for this ability. Blossom Veil (2 actions) (only in the hands of a Rajani): This functions exactly as the spell blur. Upgrade: when Vol Rajani’s spirit is contacted in her lens, the Rosa Argentis becomes a +2 greater striking weapons. In addition, it gains its final ability: Piercing Thorn (2 actions): This ability functions as Power Attack, but it also ignores damage resistance, cover, and concealment. However, it requires that the wielder of the Rosa Argentis is either grappling or being grappled by the target of this attack. For notes on how the Rosa Argentis may be acquired, see my notes on the fourth level of the vaults.
This longsword has been in the Rajani family for years, and Vol Rajani carried it throughout her distinguished adventuring career. Despite its pristine and gleaming appearance, the Cooperative Blade is incredibly ancient, created in pre-Earthfall Nidal. The Cooperative Blade is normally on display at the Dawnflower Library, but Carman Rajani steals it from the library at the beginning of Chapter 5. COOPERATIVE BLADE ITEM 6 UNIQUE DIVINATION MAGICAL Price 250 gp Usage held in 1 hand; Bulk 1 This +1 striking longsword has a mirror-like blade free of tarnish despite being millennia old. While wielding it, you gain a +2 item bonus to checks to Aid. If you’re an expert with the skill or attack roll you’re using to Aid and you critically succeed, you grant your ally a +3 circumstance bonus to the triggering check instead of a +2 bonus