The perfect expedition: level 15, seven flasks, ten great enemies and purple gear in a single run
Four trophies ask for something within a single expedition and can be earned together. How to split the two days to reach level 15, where the flask charges are, what counts as a great enemy and how to fill your inventory with purple gear.
And it counts towards Replenished Sacred Flasks, Untold Power, Set and Steadfast, Legendary Armament, required for the platinum.
How to split the two days
Everything you gain in an expedition is lost when it ends: level, weapons, flasks. What carries over is mainly relics and Murk. That is why these four trophies are earned within a single run, and it pays to go for them together.
The PSNProfiles guide's plan: on Day 1, forts and great churches for Stonesword Keys, and around level 5-8, the boss under the central castle. At the start of Day 2, aim to be level 9-11, and spend it on field bosses, evergaols, the castle and the Shifting Earth event. Hit churches on the way, without detours.
Day 2 field bosses are also the best source of legendary weapons; if you want to play it safe, the Crater's smithing table upgrades any weapon to legendary.
The four trophies, one by one
Untold Power (74.1%): 10 great enemies, the ones that show a name and health bar at the bottom. Both end-of-day bosses count, so it comes with play.
Replenished Sacred Flasks (70.5%): 7 charges. You start with 3 and each church adds one: you need four churches in the same run.
Mastery (54.8%): level 15. The key is not dying, because going down costs levels and runes; rune relics help, and in a group stay close to share the kills.
Set and Steadfast (41.0%): purple or legendary gear in every slot. It is the rarest of the four and the one best done in a group: in the last area before the Nightlord, your teammates drop their purple pieces and you pick them up.
For Set and Steadfast, PowerPyx, Fextralife and PSNProfiles do not give the same minimum number of purple pieces. The only safe bet is to leave no weapon or item slot empty or low-rarity.
The trophies involved
Each one links to its section inside the full Elden Ring Nightreign trophy guide.