Resplendent Chroma Catalyst

Can sometimes randomly drop from defeating enemies.

Found on the right of the Anger Vale Expedition Flag

Found in the area on the right of the floating mask accessible through a ramp

Dropped upon defeating Seething Boucheclier

Dropped upon defeating Jovial Moissonneuse

Dropped upon defeating Sorrowful Chapelier

Dropped upon defeating Mask Keeper

 Blooraga

Found at the end of the large plaza past the Dancing Class Expedition Flag.

Found hidden by a Paint Spike in a large room to the left after walking down the path from the Dancing Classes Expedition Flag.

From the previous Resplendent Chroma Catalyst location, turn around and take the rope down. Head through the archway on the right and turn left to pick up the Resplendent Chroma Catalyst.

After the Chromatic Greatsword Cultist boss, head down the path on the right and climb up the wall structure and into the building to find a Resplendent Chroma Catalyst.

From the previous Resplendent Chroma Catalyst, turn around and go straight ahead to climb the wall structures. Crawl into the building and pick up the Resplendent Chroma Catalyst.

From the previous Repsplendent Chroma Catalyst, take the rope down and turn right to pick up the Resplendent Chroma Catalyst.

Defeat the Petank in this location to obtain 5 Resplendent Chroma Catalysts.

Exit the ribbon room and head to the other side past the archway to pick up a Resplendent Chroma Catalyst.

Past The Manor entrance, head down the path and grapple up across to the next area. Continue down the left side and pick up a Resplendant Chroma Catalyst on the balcony.

Can be found to the right before approaching the Tisseur after the Sewing Atelier Expedition Flag.

Defeat the Petank in the Crumbling Path to obtain 5 Resplendent Chroma Catalysts.

Can be obtained upon defeating Glissando.

Can be found by a large column after being transported in the Crumbling Path.

Can be obtained upon defeating Sirene (Boss).

 Klaudiso

Defeat Eveque in the Tainted Meadows.

Can be found on the ground on the path before the Tainted Waters Expedition Flag.

Defeat the Chromatic Bourgeon in the Tainted Waters.

Can be picked up by the large structure in the main area past the Tainted Waters Expedition Flag.

Defeat the Ultimate Sakapatate in the Tainted Sanctuary.

From the Ultimate Sakapatate, head to the path to the right to find it in an alcove on the left.

Can be picked up at the top of the stairs after discovering the Tainted Cliffs Expedition Flag.

Can be obtained upon defeating a group of enemies consisting of 3 Reaper Cultists to the right path on the first fork of the path in the Tainted Cliffs.

Defeat the Petank in the Tainted Cliffs to obtain 5 Resplendent Chroma Catalysts.

Can be obtained upon defeating Gargant in Tainted Hearts.

Can be obtained upon defeating a group of enemies consisting of an Obscur, and a Danseuses, located at the top of the hill in the Tainted Hearts section.

Can be obtained upon defeating Clair Obscur in Tainted Lumiere.

Can be found on the path to the right guarded by 2 Gold Chevaliere right before the Tower Peak Expedition Flag.

Can be obtained upon defeating Renoir at the Tower Peak.

Can be obtained upon defeating The Paintress at the Monolith Peak Entrance.

 Mistra

 Melosh

Fall between the loading planks to find a Resplendent Chroma Catalyst to the right.

4 dropped upon defeating the Chromatic Gold Chevaliere.

 Persik

 Grour