Genshin Impact: Sea Map - How to get it, stats and materials for ascension

The Sea Map is a free 4-star catalyst available to all players. There is no special unlocking requirement, but making the weapon requires some grinding. This is because the weapon requires a Northlander Catalyst Billet, which is only available via weekly boss launches or as mission / exploration rewards.

Once you have a Northlander catalyst billet, you can use it to forge the amber prototype or the sea map. Sea Map is a niche weapon that is mostly outclassed by other options, and not many characters can use it.

Mare's Stats map

• Rarity: 4 stars
• ATT: 44 - 565
• Secondary Statistic: Elemental Mastery
• Secondary statistical levels: 24 - 110
• Passive: Scroll of Infusion: Activating an elemental reaction grants an elemental DMG bonus of 8% for 10 seconds. Maximum 2 batteries.

Materials for Ascension

Level 20	x3 Aerosiderite Grain, x3 Fragile Bone Fragment, x2 Slime Condensate, x5.000 Blackberry
Level 40	x3 Aerosiderite Chunk, x12 Fragile Bone Fragment, x8 Condensed Slime, x15.000 Blackberry
Level 50	x6 piece of aerosiderite, x6 sturdy bone fragment, x6 slime secretions, x20.000 Blackberry
Level 60	x3 bit of aerosiderite, x12 sturdy bone fragment, x9 slime secretions, x30.000 Blackberry
Level 70	x6 Aerosiderite Chunks, x9 Fossil Bone Fragments, x6 Slime Concentrate, x35.000 Blackberry
Level 80	x4 piece of aerosiderite, x18 fossilized bone fragment, x12 slime concentrate, x45.000 Blackberry

Is the Sea Map okay?

The Sea Map is a niche weapon that is outclassed by a 3-star option, the Magic Guide. Plus, only a Catalyst user really benefits from Elemental Mastery to this extent, and that's Sucrose.

Sucrose prefers two easily obtainable catalysts, the 3-star magic guide and the 4-star sacrificial shards. Both are catalysts that can be obtained from summoning, but magical guidance is very common and getting more sacrificial shards isn't impossible.