Elden Ring: What To Do With Remembrance Of The Rot Goddess

gamerant.com:

In Elden Ring players can earn Remembrances by defeating certain bosses throughout the Lands Between. Most of these major bosses are non-optional and must be defeated in order to beat the game. Some, like the Remembrance of the Rot Goddess, can only be earned by going out of your way to fight some of the game's strongest enemies — in this case, Malenia.

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Remembrances can be used one of two ways: consumed, to gain a flat amount of Runes, or traded in, to get one of two specialty items. Though the Remembrance of the Rot Goddess is found pretty late into Elden Ring, the trade-in rewards are great for the end-game and are perfect for a bleed or Scarlet Rot-based New Game Plus build.

The first thing players should consider doing with the Remembrance of the Rot Goddess is trade it with Enia for one of two unique items: a Katana or an Incantation. Unless you're using a modified save file, you should have met Enia a long time ago in Roundtable Hold. Depending on other factors Enia may not quite be herself upon returning to Roundtable Hold. She can still let the player Receive Power From Remembrance after this unfortunate change.

The Hand of Malenia is one of the game's best Dexterity-based weapons and very powerful in PvP thanks to the Waterfowl Dance Ash of War – indeed, this katana's unique skill unleashes the same near-undodgable combo Malenia uses. It's an amazing option when dual-wielding Bleed weapons, but be sure to equip it in the right hand to use its Ash of War.

The other option is the Incantation Scarlet Aeonia, one of the game's most powerful Incantations for Scarlet Rot buildup. It uses a steep 56 FP with each cast, but it's well worth the cost after recent buffs to Incantations