Upgrade Water Charm through three ranks and it tops out at Water Resistance Lv3. The first rank costs 500z to craft, every rank after that is an upgrade. Some of the materials only come from Balahara, Jin Dahaad and Uth Duna.
Rank by rank
Water Charm IRarity 2
Water Resistance Lv1: Water resistance +6
Craftable · 500zWater Charm IIRarity 4
Water Resistance Lv2: Water resistance +12
Upgrade from previous rank · 1,500zWater Charm IIIRarity 5
Water Resistance Lv3: Water resistance +20 Defense +10
Upgrade from previous rank · 3,000z