there needs to be a change to both of these artifacts.

Omicron Net
this is the most exploited artifact in the game. even with the recent change to prevent usage on friends, there will always be ways to put them on friendly people. the artifact is more beneficial than harmful. this is because of the over abundance of containment cages. any player worth anything knows how to remove them. every player at any level has containment cages. the net takes 10 energy to fire, but can be too easily removed.
OPTIONS
1) remove Omicron nets from the game
2) make it so containment missiles remove it like a beneficial artifact that it is
3)make containment cages usage 1 instead of 3, then make them as rare as the containment missiles. this will also add to the rarity that hostile artifacts will get removed as well.
4) disallow attacks of any type on former legion mates after they leave the legion for 24 hours, and also block them from joining a legion for 24 hours after they leave one. this will prevent them leaving for a second to fire the net, then rejoining the same legion.

or better yet... make the nets immune to containment cages, but reduce the effect to 15 minutes. that would be more like the intended effect.

or just deal with it lol....... I do not agree or disagree with you on this statement just want to point out a flaw in your last statement. If you make a person unable to attack that leaves your legion that will be a exploit waiting to happen. Someone can then join a legion to steal a planets and leave knowing they will get away scot free cuz of the 24 hr window they will just vanish off into the horizon with your nice planet cuz you can not attack them.

i said unable to attack, not be attacked. i think a better option would be disallowed from using nets on former legion mates. this will fix your concern.

When you typed this I believe you done use containment cages on NPC and BOSS debuffs. I guess now you get what you asked for but unfortunately.. this Affects NPC hunts as well.. Just lost 7 Containment cages this morning on a Dark Mega Complex...

Now I have to find 7 of them in the artifact game of chance.. I just hope Dan did not tweak the rarity of the containment cages..

lol... now you have to use them more wisely. i do use them on NPS alot, but only because i have 30+ of them. if i only had like 5, then i would have to start choosing when to use them.