A Comprehensive Guide to Obtaining All Materials for Cathie: Including Cultivation, Weapons, and Resonance

In the resonant sea breeze, we seek the footprints of Katheryne
When the tide recedes, the beach always leaves behind some strange shells. The winds from the distant ocean bring news of Katheryne; she will appear in the upcoming 2.4 version gacha pool. This new character from the distant sea seems to carry some mysterious power, attracting the attention of every Resonance of the Deep player.
To cultivate this new character to the maximum level, a large number of materials are required. These materials are like the keys to unlocking her mysterious past, hidden in every corner of the game, waiting to be discovered by someone with a keen eye.
The total number of materials is staggering: 29 low-frequency erosional sail cores, 40 medium-frequency erosional sail cores, 52 high-frequency erosional sail cores, 61 all-frequency erosional sail cores, 46 new material “Eternal Glory,” 26 “Iris Blossom Days,” 60 new material “Flat Bamboo Flowers,” 25 inert metallic drops, 28 active metallic drops, 55 polarized metallic drops, 67 metastatic metallic drops, 122 special-grade resonance promoters, and finally, 3,053,300 Bells.
In the process of pursuing these materials, one can almost hear the sound of waves crashing against the reefs. Each material has its unique way of acquisition: completing the Condensed Elemental Domain challenges rewards you with inert, active, polarized, and metastatic metallic drops. The new weekly challenge “Fate’s Broken Chapter: The Wheel” drops “Iris Blossom Days.” Erosional sail cores are randomly dropped when defeating enemies.
The material “Flat Bamboo Flower” is particularly special, as it can only be collected in the mountain valleys of specific regions. These flowers sway in the unpredictable weather, as if telling an ancient legend.
Katheryne’s exclusive weapon, “The Crown of Unyielding Fate,” also requires a large number of materials to level up: 6 low-frequency howling cores, 6 medium-frequency howling cores, 10 high-frequency howling cores, 12 all-frequency howling cores, 6 inert metallic drops, 8 active metallic drops, 6 polarized metallic drops, 20 metastatic metallic drops, plus 330,000 Bells.
Leveling up Katheryne requires specific material combinations at each level: Level 20 requires 4 low-frequency erosional sail cores and 5,000 Bells, Level 40 requires 4 Flat Bamboo Flowers, 4 medium-frequency erosional sail cores, 3 Eternal Glory materials, and 10,000 Bells, and so on, until Level 80, which requires 20 Flat Bamboo Flowers, 4 all-frequency erosional sail cores, 16 Eternal Glory materials, and 80,000 Bells.
Upgrading the Resonance Circuit also requires careful preparation: 25 low-frequency erosional sail cores, 28 medium-frequency erosional sail cores, 40 high-frequency erosional sail cores, 57 all-frequency erosional sail cores, 26 Iris Blossom Days, 25 inert metallic drops, 28 active metallic drops, 55 polarized metallic drops, 67 metastatic metallic drops, plus 2,030,000 Bells.
Each level of the Resonance Circuit requires specific material combinations: Level 2 requires 2 inert metallic drops, 2 low-frequency erosional sail cores, and 1,500 Bells; Level 3 requires 3 inert metallic drops, 3 low-frequency erosional sail cores, and 2,000 Bells; and so on.