Don't Fix What Never Broke
Ultra rare0.1%ObjectiveOptionalAnywhere
Equip 4 planet artifacts at one time on the same planet.
Planet artifacts spawn on specific planets and are randomised per match, so a game may not contain all four. Play a large map (6- or 10-player random maps reliably hold the full set), expand to capture the planets holding each artifact, then equip all four planet artifacts on a single planet at once via its artifact interface.