There are a few different ways you can customize your character during an expedition in Elden Ring Nightreign, but there's only one method to use while you're at the Roundtable Hold. Relics are the primary form of build customization when you're gearing up for an expedition, and they allow you to bestow certain abilities and buffs onto your character. However, Relics aren't fully explained when you start up Nightreign. Even after you get into the basics of them, there are still some tidbits you need to know to take full advantage of them.You can see exactly how to use Relics in Elden Ring Nightreign in the guide below.How to get Relics in Elden Ring NightreignFor starters, Relics can only be accessed and equipped at the Roundtable Hold in Nightreign. To find the spot to equip Relics, go to the central part of the Roundtable Hold and look around at the circular walls for a carved-out area with blue candles. Approach this area, interact with the altar that's there by choosing to "Perform Relic Rites," and you'll bring up the Relics menu.Accessing the Relics area at the Roundtable HoldOnce you've brought up the Relics menu, you'll be able to swap between every character class you have unlocked, which is six by default. However, you can unlock two additional classes in Nightreign to bring your total to eight, and when you unlock those classes, they'll be added to the Relics menu.In the Relics menu, you'll see three colored slots under each of your class tabs on the left-hand side of the screen. On the right-hand side of the screen, you can view all of the Relics that you have available.You can acquire Relics by purchasing them from the Small Jar Bazaar NPC at the Roundtable Hold or unlock them at the end of every expedition run in Nightreign. Regardless of whether you die prematurely or not, you should usually receive at least a few Relics as a reward for going on an expedition. The rewards screen is viewable at the end of every run, right before you return to the Roundtable Hold.The rewards screen showing the Relics unlockedAs for purchasing the Relics at the Small Jar Bazaar, you can either purchase them directly or buy a Scenic Flatstone item, which contains a random reward that could be a Relic. You purchase the Relics or any other item at the Small Jar Bazaar using the Murk currency, which is rewarded to you after expeditions. The longer and more successful expedition you go on, the more Murk and Relics you'll receive as a reward.Purchasing a Scenic Flatstone from the Small Jar Bazaar shopHow to use and equip Relics in Elden Ring NightreignGoing back to the Relics menu, you can equip Relics in the three slots for every class you have unlocked. However, Relics need to be equipped in the appropriately colored slot. For example, you can only equip a Relic with a red gem in the center of it in the red Relic slot. The same goes for blue-, green-, and orange-colored Relics.You can also use physical items as Relics that are often earned via defeating a final expedition boss. These will have a colored dot on their icon in the Relics menu that lets you know what color slot they can go into.Every class in Nightreign has different colored Relic slots by default. The Guardian class, for example, has one red and two orange colored slots so that you can insert one red and two orange Relics for that class. On the other hand, the Wylder class has two red and one blue-colored slot.The basic Relics menu in NightreignIt should be noted that you're fully allowed to use one Relic multiple times. This means just because you equip one Relic for one class doesn't mean you can't then equip that Relic for another class (as long as the colored slots allow for it). So if you have a particularly strong red Relic in Nightreign, you can spread that Relic across any class that has a red Relic slot.Before and after you equip a Relic into a slot, you're able to hover over its icon to see all of the bonuses it offers. Sometimes, Relics will have bonuses that only apply to one class, but most of the time, Relics are best suited for specific classes. As an example, the "Night of the Beast" Relic that you receive for slaying the first expedition boss in Nightreign makes your starting armament deal fire damage. This particular bonus is terrific for melee classes, but isn't as strong for the Recluse or Ironeye, who use ranged weapons.Choosing the Night of the Beast RelicNaturally, you'll want to equip Relics that you deem beneficial for the build you're attempting to use. If you're going with the Guardian, for example, then equipping Relics that offer better stamina or physical damage makes sense, but you can also change things up if you want to use the Guardian in a specific way.How to change Relic color slots in Elden Ring NightreignOne of the most frustrating aspects of the Relics menu in Nightreign is that you're initially limited to the colored slots that are offered by default. This makes it difficult to customize a certain class the way you want, since you might be unable to use strong Relics due to their color not matching your available slots.However, there is an easy way to change the colored Relic slots for every class. All you need to do is make your way over to the Small Jar Bazaar and purchase one of the special goblets for each of the classes. These allow you to change the colored slots for that particular class. So, if you buy the Guardian's Goblet, you can switch the colored slots for the Guardian in the Relics menu. The goblets only become available at the shop after you have defeated the first expedition boss, Tricephalos, in Nightreign.Viewing the different class goblets at the Small Jar BazaarOf course, the goblets also come with premade colored slots, so you don't get to fully customize the slots yourself, but this offers an alternative to the default slots. Each of the class goblets is sold for 1,200 Murk at the Small Jar Bazaar, and once you have one, head over to the Relic Rites area.In the Relics menu, go to the class you bought the goblet for and press the white down arrow right underneath where the colored slots are. This allows you to switch between the Guardian's Urn, which has the default slots, and the Guardian's Goblet, which has your new slots. The goblets completely alter the Relics you can equip, as the Guardin's Goblet offers two blue and one green slots compared to the Guardina's Urn, which has one red and two orange slots.Swapping the Guardian's Urn for the Guardian's GobletAs you progress through Elden Ring Nightreign, you'll be able to acquire more sets of Relic slots, but the goblets are your only option at the start of the game.Unlocking new Relics, swapping them around, and choosing what abilities and buffs to use for every class is a major part of the progression loop and character-building aspect of Nightreign, so make sure you're taking full advantage of the feature throughout your time in the Living Lands.