Upgrading Weapon Skills

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About | Upgrading Weapon Skills

Weapon skills can be leveled up through upgrades.

By using weapons with skills as materials or the Craftsman's Anvil, it's possible to level up the skill of another weapon through upgrades. Using a weapon without a skill will not level up the skill of another weapon.

Caution

Do not use SR or SSR weapons obtained from the Draw as upgrade material. SSR draw weapons may be needed for future weapon grids and SR draw weapons are usually more valuable reduced for weapon stones.

Upgrade Material Value

Note that 100% is the highest rate you can get; using more points than necessary will not allow you to get more than 1 skill up per upgrade.

A fodder weapon is worth as many points as its base form times its skill level, e.g. Yggdrasil Bark is normally worth 100 points, but an Yggdrasil Bark with skill level 3 is worth 300 points. Uncapping or weapon level do not factor in at all and should be avoided for fodder.

Fodder
(skill level 1)		 Points
25
100
1000
Skill Shard See chart below
Skill Jewel See chart below

Upgrade Value for Skill Stones

Standard SSR Bahamut / Seraphic / Ultima / Dark Opus / Draconic
Skill Jewel Skill Shard Skill Jewel Skill Shard
Skill Level % Skill point value % Skill point value % Skill point value % Skill point value
1→2 100 200 25 50 20 200 5 50
2→3 50 200 12.5 50 10 200 2.5 50
3→4 33.34 200 8.34 50 6.67 200 1.67 50
4→5 25 200 6.25 50 5 200 1.25 50
5→6 20 200 5 50 5 250 1 50
6→7 20 240 5 60 5 300 1 60
7→8 20 280 5 70 5 350 1 70
8→9 20 320 5 80 5 400 1 80
9→10 20 360 5 90 5 450 1 90
10→11 12 240 3 60 3 300 1 100
11→12 12 264 3 66 3 330 1 110
12→13 12 288 3 72 3 360 1 120
13→14 12 312 3 78 3 390 1 130
14→15 12 336 3 84 3 420 1 140
15→16 5 750 1 150 3 750 1 250
16→17 5 800 1 160 3 800 1 266
17→18 5 850 1 170 3 850 1 283
18→19 5 900 1 180 3 900 1 300
19→20 5 950 1 190 3 950 1 316
20→21 3 1000 1 333
21→22 3 1050 1 350
22→23 3 1100 1 366
23→24 3 1150 1 383
24→25 3 1200 1 400

Note: As upgrade attempts can use a maximum of 20 weapons at one time, it is not possible to upgrade certain levels with skill stones alone. For maximum efficiency, skill shards should be used only on standard SSR upgrades from 9 to 10 (20 skill shards) and skill jewels should be used only on standard SSR upgrades from 19 to 20 (20 skill jewels). For practicality, skill shards can be used at any time while it is recommended to save skill jewels for standard SSR upgrades from 16-20.

Upgrade Cost

Points for
100% skill up
Level Bahamut / Seraphic /

Ultima / Dark Opus /

Draconic

1→2 100 200 1000
2→3 200 400 2000
3→4 300 600 3000
4→5 400 800 4000
5→6 500 1000 5000
6→7 600 1200 6000
7→8 700 1400 7000
8→9 800 1600 8000
9→10 900 1800 9000
10→11 1000 2000 10,000
11→12 1100 2200 11,000
12→13 1200 2400 12,000
13→14 1300 2600 13,000
14→15 1400 2800 14,000
15→16 - 15,000 25,000
16→17 - 16,000 26,666
17→18 - 17,000 28,333
18→19 - 18,000 30,000
19→20 - 19,000 31,666
20→21 - - 33,333
21→22 - - 35,000
22→23 - - 36,666
23→24 - - 38,333
24→25 - - 40,000
SSR 
 SR
SSR

Standard SSR Efficiency Chart

As each level of an SSR weapon is worth 1000 points, it is more efficient to use SR weapons to upgrade SSRs at higher upgrade levels. For example, it costs 200 points (2 SR weapons) to upgrade an SSR weapon from level 1 to 2 which makes it worth 2000 points instead of 1000 points giving an 800 point increase compared to if you were to use the 2 SR weapons and 1 SSR weapon separately. The game will automatically combine SR and SSR fodder on a single upgrade attempt to make the most efficient combination.

Additionally, a weapon from 0 - 3 stars uncapped have a maximum skill level of 10, 4 stars have a maximum skill level of 15, and 5 stars have a maximum skill level of 20. If the skill level on the upgrade screen is in yellow text, you have reached the current maximum skill level.

Note: All weapons are skill level 1 unless noted otherwise by SLv.

For the below table, any SR weapon can be replaced with 4 R weapons with no efficiency loss.

For level 15 and above, each SSR level will take that many skill level 1 SSR weapons.

Skill Level Points Needed Combination Points Raw Point Value Combination Points Raw Point Value Combination Points Raw Point Value
1→2 200 ×2 200 200
2→3 400 ×4 400 400
3→4 600 ×6 600 600
4→5 800 ×8 800 800
5→6 1000 ×10 1000 1000 ×1 1000 1000
6→7 1200 ×12 1200 1200 ×1 ×2 2000 1200 ×20 1200 1200
7→8 1400 ×1 ×2 2000 1200 SLv2 ×1 2000 2000 ×20 1400 1400
8→9 1600 ×1 ×2 2000 1200 SLv2 ×1 2000 2000 ×20 1600 1600
9→10 1800 ×1 ×2 2000 1200 SLv2 ×1 2000 2000 ×20 1800 1800
10→11 2000 ×1 ×2 2000 1200 SLv2 ×1 2000 2000
11→12 2200 ×1 ×4 2200 1400 SLv2 ×1 ×2 2200 2200
12→13 2400 ×1 ×6 3000 1600 SLv2 ×1 ×4 3000 2400 SLv3 ×1 3000 3000
13→14 2600 ×1 ×6 3000 1600 SLv2 ×1 ×4 3000 2400 SLv3 ×1 3000 3000
14→15 2800 ×1 ×6 3000 1600 SLv2 ×1 ×4 3000 2400 SLv3 ×1 3000 3000
15→16 15,000 SLv3 ×5 15000 15000
16→17 16,000 SLv3 ×4 SLv2 ×2 16000 16000
17→18 17,000 SLv3 ×5 SLv2 ×1 17000 17000
18→19 18,000 SLv3 ×6 18000 18000
19→20 19,000 SLv3 ×5 SLv2 ×2 19000 19000 ×20 19000 19000

Bahamut / Seraphic / Ultima / Dark Opus / Draconic SSR Efficiency Chart

For skill level 14 and below, each SSR level requires an equivalent number of skill level 1 SSR weapons in point value.

Skill Level Points Needed Combination Points Raw Point Value Combination Points Raw Point Value Combination Points Raw Point Value
1→2 1000 ×10 1000 1000 ×1 1000 1000
2→3 2000 ×1 ×2 2000 1200 SLv2 ×1 2000 2000
3→4 3000 ×1 ×6 3000 1600 SLv2 ×1 ×4 3000 2400 SLv3 ×1 3000 3000
4→5 4000 ×2 ×4 4000 2400 SLv2 ×2 4000 4000
5→6 5000 ×2 ×8 5000 2800 SLv3 ×1 SLv2 ×1 5000 5000
6→7 6000 ×2 ×12 6000 3200 SLv3 ×2 6000 6000
7→8 7000 ×3 ×10 7000 4000 SLv3 ×1 SLv2 ×2 7000 7000
8→9 8000 ×3 ×14 8000 4400 SLv3 ×2 SLv2 ×1 8000 7000
9→10 9000 SLv3 ×3 9000 9000 SLv3 ×1 ×2 ×12 9000 6200
10→11 10,000 SLv3 ×2 SLv2 ×2 10000 10000 SLv3 ×1 ×3 ×10 10000 7000
11→12 11,000 SLv3 ×3 SLv2 ×1 11000 11000 SLv3 ×1 ×3 ×14 11000 7400
12→13 12,000 SLv3 ×4 12000 12000 SLv3 ×2 ×2 ×12 12000 9200
13→14 13,000 SLv3 ×3 SLv2 ×2 13000 13000 SLv3 ×2 ×3 ×10 13000 10000
14→15 14,000 SLv3 ×4 SLv2 ×1 14000 14000 SLv3 ×2 ×3 ×14 14000 10400
15→16 25,000 SLv3 ×7 SLv2 ×2 25000 25000 ×12 SLv3 ×4 SLv2 ×2 25000 17800
16→17 26,666 SLv3 ×9 27000 27000 ×1 ×13 SLv3 ×4 SLv2 ×2 26666 19466
17→18 28,333 SLv3 ×9 SLv2 ×1 29000 29000 ×1 ×13 SLv3 ×5 SLv2 ×1 28333 20533
18→19 30,000 SLv3 ×10 30000 30000 ×1 ×13 SLv3 ×6 30000 21600
19→20 31,666 SLv3 ×10 SLv2 ×1 32000 32000 ×1 ×13 SLv4 ×1 SLv3 ×5 31666 22866
20→21 33,333 ×1 ×13 SLv4 ×2 SLv3 ×4 33333
21→22 35,000 ×1 ×13 SLv4 ×3 SLv3 ×3 35000
22→23 36,666 ×1 ×13 SLv4 ×4 SLv3 ×2 36666
23→24 38,333 ×2 ×13 SLv5 ×3 SLv4 ×2 38333
24→25 40,000 ×1 ×14 SLv5 ×3 SLv4 ×2 40000

Craftsman's Anvil

As of Sep 29, 2020 skill points can be reserved for use in the Craftsman's Anvil (refer to http://game.granbluefantasy.jp/#news/detail/4427/3/0/2)

However, upgrading using the Craftsman's Anvil tends to favor using as many SR points as possible to "pre-upgrade" the SSR points, rather than using more SSR points. If the player only has a certain number of SR points available from reserving, then the Craftsman's Anvil can be forced to "pre-upgrade" only to level 2 or 3 in order to reach a target level. The following chart represents alternative combinations of reserve skill points that favors using SSR points. Do not reserve any more SR points than the recommendation if it is desired to not spend more than the designated number of SR points to "pre-upgrade" the SSR point. If the anvil has enough R points available, the option to use SR points can be disabled when upgrading to force the anvil to pre-upgrade only to SL3, as it cannot use more than 20 points at a time for each step in the upgrade process, and pre-upgrading to SL4 would require 24 R weapons.

Efficiency Chart

The columns are as follows:

  1. standard weapons: reserved skill point combination to get to target from previous level (use no more than 6 SR points to pre-upgrade an SSR point to level 3)
  2. standard weapons: alternative reserved skill point combination to get to target from previous level (use no more than 2 SR points to pre-upgrade an SSR point to level 2)
  3. high-tier weapons: reserved skill point combination to get to target from previous level (use no more than 6 SR points to pre-upgrade an SSR point to level 3)
  4. high-tier weapons: alternative reserved skill point combination to get to target from previous level (use no more than 2 SR points to pre-upgrade an SSR point to level 2)
  5. standard weapons: total reserved skill point combination to get to the target level, from level 1 (use no more than 6 SR points to pre-upgrade an SSR point)
  6. standard weapons: alternative total reserved skill point combination to get to the target level, from level 1 (use no more than 2 SR points to pre-upgrade an SSR point)
  7. high-tier weapons: total reserved skill point combination to get to the target level, from level 1 (use no more than 6 SR points to pre-upgrade an SSR point)
  8. high-tier weapons: alternative total reserved skill point combination to get to the target level, from level 1 (use no more than 2 SR points to pre-upgrade an SSR point)
Skill Level 1. Std. 2. Alt Std. 3. H.T. 4. Alt H.T. Skill Level 5. Std. 6. Alt Std. 7. H.T. 8. Alt. H.T.
1→2 ×2 ×2 ×1 ×1 1→2 ×2 ×2 ×1 ×1
2→3 ×4 ×1 ×1 ×2 ×1 ×2 1→3 ×6 x1 ×2 ×2 ×2 ×2 ×2
3→4 ×6 ×1 ×1 ×6 ×2 ×2 1→4 ×12 ×2 ×2 x3 ×8 ×4 ×4
4→5 ×1 ×1 ×2 ×4 ×2 ×4 1→5 ×1 ×12 ×3 ×2 ×5 ×12 ×6 ×8
5→6 ×1 ×1 ×2 ×8 ×3 ×4 1→6 ×2 ×12 ×4 ×2 ×7 ×20 ×9 ×12
6→7 ×1 ×2 ×1 ×2 ×2 ×12 ×3 ×6 1→7 ×3 ×14 ×5 ×4 ×9 ×32 ×12 ×18
7→8 ×1 ×2 ×1 ×2 ×3 ×10 ×4 ×6 1→8 ×4 x16 ×6 x6 ×12 ×42 ×16 ×24
8→9 ×1 ×2 ×1 ×2 ×3 ×14 ×4 ×8 1→9 ×5 ×18 ×7 ×8 ×15 ×56 ×20 ×32
9→10 ×1 ×2 ×1 ×2 ×3 ×18 ×5 ×8 1→10 ×6 ×20 ×8 ×10 ×18 ×74 ×25 ×40
10→11 ×1 ×2 ×1 ×2 ×4 ×16 ×5 ×10 1→11 ×7 ×22 ×9 ×12 ×22 ×90 ×30 ×50
11→12 ×1 ×4 ×1 ×4 ×4 ×20 ×6 ×10 1→12 ×8 ×26 ×10 ×16 ×26 ×110 ×36 ×60
12→13 ×1 ×6 ×2 ×2 ×4 ×24 ×6 ×12 1→13 ×9 ×32 ×12 ×18 ×30 ×134 ×42 ×72
13→14 ×1 ×6 ×2 ×2 ×5 ×22 ×7 ×12 1→14 ×10 ×38 ×14 ×20 ×35 ×156 ×49 ×84
14→15 ×1 ×6 ×2 ×2 ×5 ×26 ×7 ×14 1→15 ×11 ×44 ×16 ×22 ×40 ×182 ×56 ×98
15→16 ×5 ×30 ×8 ×14 ×9 ×46 ×13 ×24 1→16 ×16 ×74 ×24 ×36 ×49 ×228 ×69 ×122
16→17 ×6 ×28 ×8 ×16 ×9 ×54 ×14 ×26 1→17 ×22 ×102 ×32 ×52 ×58 ×282 ×83 ×148
17→18 ×6 ×32 ×9 ×16 ×10 ×56 ×15 ×28 1→18 ×28 ×134 ×41 ×68 ×68 ×338 ×98 ×176
18→19 ×6 ×36 ×9 ×18 ×10 ×60 ×15 ×30 1→19 ×34 ×170 ×50 ×86 ×78 ×398 ×113 ×206
19→20 ×7 ×34 ×10 ×18 ×11 ×62 ×16 ×32 1→20 ×41 ×204 ×60 ×104 ×89 ×460 ×129 ×238

Another small table for using Crafter's Anvil to upgrade forgeable weapons to max SL at each uncap stage.

SL 1→10 SL 10→15 SL 15→20 Alt. SL 1→10 Alt. SL 10→15 Alt. SL 15→20
Standard weapons ×6 ×20 ×5 ×24 ×30 ×160 ×8 ×10 ×8 ×12 ×44 ×82
High-tier weapons ×18 ×74 ×22 ×108 ×49 ×278 ×25 ×40 ×31 ×58 ×73 ×140


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