Upgrade Tremor Charm through three ranks and it tops out at Tremor Resistance Lv3. The first rank costs 1,500z to craft, every rank after that is an upgrade. Some of the materials only come from Ajarakan, Balahara, Chatacabra and four more monsters.
Rank by rank
Tremor Charm IRarity 4
Tremor Resistance Lv1: Nullifies very minor ground tremors and halves effects of minor ground tremors.
Craftable · 1,500zTremor Charm IIRarity 5
Tremor Resistance Lv2: Nullifies up to minor ground tremors and greatly reduces the effects of major ground tremors.
Upgrade from previous rank · 3,000zTremor Charm IIIRarity 6
Tremor Resistance Lv3: Nullifies all ground tremors.
Upgrade from previous rank · 6,000z