We have the toxics and the data's and a Terraformer that does all three but not one for art I would like to suggest a art for a npc to drop and have a idea for the npc. Falling debris this item adds art to a planet. Ship debris is falling increasing artifact production to 2 on ocean worlds 1 on most others impact on water saves more Debris. Gets lost in gas giants no bonus.

Rogue Science League Transport rare (matched)
This ship is trying to evade your inspection teams and will not stop. Shoot her down. Continents unknown.

Would also like to propose another idea

Fleet Npc

Fleet of (a group)
your legion is under attack from a fleet of (the group attacking) you have found them in route or it would be a surprise attack. your legion must scramble to destroy them your planets are at risk destroy the enemy ships.

When you click on the fleet to fight a random ship that is your rank will appear you must destroy the same amount as half your rank. at the end of each fight a epic npc will spawn that you can share when it's dead you are locked in. when all legion members are locked you then get debris and other random group artifacts

I could also see this being a mission earn after making some group angry. just an idea

this would be very very cool and i would LOVE to see this but our legion has rank 400's they would have t kill 200+ small npc's my suggestion is to make small npc's (initial attack) extremly weak
oh and i would make them drannik automatatons (cant spell lol)
as they replicated and that

Yeah, I suggested the artifact a little while back, it got some support.

viewtopic.php?f=6&t=3355

The idea on the fleet one is that it can be any of the groups not just one and the artifact dropper could be adapted to any of the groups.

+ 1

+1 on the artifact, not so much on the npc.