I was watching the video on the official website, and it talked about relics. Are they something you equip, or do they automatically take effect when you collect them. If so, is there a certain amount you can get until they don't take effect?
If I'm remembering correctly, it's an item you equip as it's one of the 4 mods: shield, grenade, class, relic. I recall them mentioning you can hold onto a few different ones and switch them out based on what you felt you needed at the time. Since it's an equipable item you have to have it in the associated slot to receive its benefits.