Upgrade Phoenix Charm through three ranks and it tops out at Coalescence Lv3. The first rank costs 6,000z to craft, every rank after that is an upgrade. Some of the materials only come from Gore Magala, Guardian Rathalos, Jin Dahaad and one more monster.
Rank by rank
Phoenix Charm IRarity 6
Coalescence Lv1: When active, grants a slight increase to elemental attack and status buildup.
Craftable · 6,000zPhoenix Charm IIRarity 7
Coalescence Lv2: When active, grants an increase to elemental attack and status buildup.
Upgrade from previous rank · 9,000zPhoenix Charm IIIRarity 8
Coalescence Lv3: When active, grants a large increase to elemental attack and status buildup.
Upgrade from previous rank · 16,000z