Defeating Tricepalos earns you the Blade of Night Fragment key item. Give it to the Guardian once you return to Rountable Hold, and complete the Remembrance. You get the Small Makeup Brush as a reward, a blue relic that gives the Revenant a power boost when her summoned spirits are on the field and increases Rune acquisition for the entire team.

The best Revenant build in Elden Ring Nightreign changes based on what kind of randomized loot you find on a run. Every expedition is different, which means you have to be flexible as you race toward your encounter with the Nightlord. The key is to know what relics to bring into a run and what items to look for as you clear out the map.

The Revenant scales well with faith, and arcane and intelligence--aka sorcery--are close seconds. Everything else is a bit of a bust, which puts her in an odd situation. The Revenant can get by fine with a strength- or dexterity-based weapon, but the results are less positive than if she's playing to her strengths.