Raising Weapon Skills

Raising weapon skill levels requires sacrificing other weapons with skills or Skill Shards/Skill Jewels as upgrade fodder. When upgrading a weapon with another weapon with a skill, the upgrade summary will state "Skill Level Rise Rate: X%." This is the chance your weapon will gain a skill level if you perform this upgrade. Depending on the weapon rarity and current skill level, different amounts of upgrade fodder is needed to reach a 100% chance.

Weapons with two skills with skill levels will have both skills increased at once at the same cost, even if one of the skills is inactive until a certain level.

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
01	25
02	100
03	1000
Skill Shard	See chart below
Skill Jewel	See chart below

Upgrade Value for Skill Stones

	Standard SSR				Bahamut / Seraphic / Ultima / Dark Opus / Draconic
03	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

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	02	03	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

SSR

SR

SSR

START_WIDGET6f1a60cc19564591-0END_WIDGET

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	02 ×2	200	200
2→3	400	02 ×4	400	400
3→4	600	02 ×6	600	600
4→5	800	02 ×8	800	800
5→6	1000	02 ×10	1000	1000	03 ×1	1000	1000
6→7	1200	02 ×12	1200	1200	03 ×1 02 ×2	2000	1200	×20	1200	1200
7→8	1400	03 ×1 02 ×2	2000	1200	03 SLv2 ×1	2000	2000	×20	1400	1400
8→9	1600	03 ×1 02 ×2	2000	1200	03 SLv2 ×1	2000	2000	×20	1600	1600
9→10	1800	03 ×1 02 ×2	2000	1200	03 SLv2 ×1	2000	2000	×20	1800	1800
10→11	2000	03 ×1 02 ×2	2000	1200	03 SLv2 ×1	2000	2000
11→12	2200	03 ×1 02 ×4	2200	1400	03 SLv2 ×1 02 ×2	2200	2200
12→13	2400	03 ×1 02 ×6	3000	1600	03 SLv2 ×1 02 ×4	3000	2400	03 SLv3 ×1	3000	3000
13→14	2600	03 ×1 02 ×6	3000	1600	03 SLv2 ×1 02 ×4	3000	2400	03 SLv3 ×1	3000	3000
14→15	2800	03 ×1 02 ×6	3000	1600	03 SLv2 ×1 02 ×4	3000	2400	03 SLv3 ×1	3000	3000
15→16	15,000	03 SLv3 ×5	15000	15000
16→17	16,000	03 SLv3 ×4 03 SLv2 ×2	16000	16000
17→18	17,000	03 SLv3 ×5 03 SLv2 ×1	17000	17000
18→19	18,000	03 SLv3 ×6	18000	18000
19→20	19,000	03 SLv3 ×5 03 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	02 ×10	1000	1000	03 ×1	1000	1000
2→3	2000	03 ×1 02 ×2	2000	1200	03 SLv2 ×1	2000	2000
3→4	3000	03 ×1 02 ×6	3000	1600	03 SLv2 ×1 02 ×4	3000	2400	03 SLv3 ×1	3000	3000
4→5	4000	03 ×2 02 ×4	4000	2400	03 SLv2 ×2	4000	4000
5→6	5000	03 ×2 02 ×8	5000	2800	03 SLv3 ×1 03 SLv2 ×1	5000	5000
6→7	6000	03 ×2 02 ×12	6000	3200	03 SLv3 ×2	6000	6000
7→8	7000	03 ×3 02 ×10	7000	4000	03 SLv3 ×1 03 SLv2 ×2	7000	7000
8→9	8000	03 ×3 02 ×14	8000	4400	03 SLv3 ×2 03 SLv2 ×1	8000	7000
9→10	9000	03 SLv3 ×3	9000	9000	03 SLv3 ×1 03 ×2 02 ×12	9000	6200
10→11	10,000	03 SLv3 ×2 03 SLv2 ×2	10000	10000	03 SLv3 ×1 03 ×3 02 ×10	10000	7000
11→12	11,000	03 SLv3 ×3 03 SLv2 ×1	11000	11000	03 SLv3 ×1 03 ×3 02 ×14	11000	7400
12→13	12,000	03 SLv3 ×4	12000	12000	03 SLv3 ×2 03 ×2 02 ×12	12000	9200
13→14	13,000	03 SLv3 ×3 03 SLv2 ×2	13000	13000	03 SLv3 ×2 03 ×3 02 ×10	13000	10000
14→15	14,000	03 SLv3 ×4 03 SLv2 ×1	14000	14000	03 SLv3 ×2 03 ×3 02 ×14	14000	10400
15→16	25,000	03 SLv3 ×7 03 SLv2 ×2	25000	25000	×12 03 SLv3 ×4 03 SLv2 ×2	25000	17800
16→17	26,666	03 SLv3 ×9	27000	27000	×1 ×13 03 SLv3 ×4 03 SLv2 ×2	26666	19466
17→18	28,333	03 SLv3 ×9 03 SLv2 ×1	29000	29000	×1 ×13 03 SLv3 ×5 03 SLv2	28333	20533
18→19	30,000	03 SLv3 ×10	30000	30000	×1 ×13 03 SLv3 ×6	30000	21600
19→20	31,666	03 SLv3 ×10 03 SLv2 ×1	32000	32000	×1 ×13 03 SLv4 ×1 03 SLv3 ×5	31666	22866

Craftsman's Anvil Efficiency chart

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.

The columns are as follows:

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)
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)
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)
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)
standard weapons: total reserved skill point combo to get to the target level, from level 1 (use no more than 6 SR points to pre-upgrade an SSR point)
standard weapons: alternative total reserved skill point combo to get to the target level, from level 1 (use no more than 2 SR points to pre-upgrade an SSR point)
high-tier weapons: total reserved skill point combo to get to the target level, from level 1 (use no more than 6 SR points to pre-upgrade an SSR point)
high-tier weapons: alternative total reserved skill point combo 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. Combo	2. Alt Std. Combo	3. H.T. combo	4. Alt H.T. Combo	5. Std. from SL 1	6. Alt Std. from SL 1	7. H.T. from SL 1	8. Alt. H.T. from SL 1
2	02 ×2	02 ×2	03 ×1	03 ×1	02 ×2	02 ×2	03 ×1	03 ×1
3	02 ×4	03 ×1	03 ×1 02 ×2	03 ×1 02 ×2	02 ×6	03 x1 02 ×2	03 ×2 02 ×2	03 ×2 02 ×2
4	02 ×6	03 ×1	03 ×1 02 ×6	03 ×2 02 ×2	02 ×12	03 ×2 02 ×2	03 x3 02 ×8	03 ×4 02 ×4
5	03 ×1	03 ×1	03 ×2 02 ×4	03 ×2 02 ×4	03 ×1 02 ×12	03 ×3 02 ×2	03 ×5 02 ×12	03 ×6 02 ×8
6	03 ×1	03 ×1	03 ×2 02 ×8	03 ×3 02 ×4	03 ×2 02 ×12	03 ×4 02 ×2	03 ×7 02 ×20	03 ×9 02 ×12
7	03 ×1 02 ×2	03 ×1 02 ×2	03 ×2 02 ×12	03 ×3 02 ×6	03 ×3 02 ×14	03 ×5 02 ×4	03 ×9 02 ×32	03 ×12 02 ×18
8	03 ×1 02 ×2	03 ×1 02 ×2	03 ×3 02 ×10	03 ×4 02 ×6	03 ×4 02 x16	03 ×6 02 x6	03 ×12 02 ×42	03 ×16 02 ×24
9	03 ×1 02 ×2	03 ×1 02 ×2	03 ×3 02 ×14	03 ×4 02 ×8	03 ×5 02 ×18	03 ×7 02 ×8	03 ×15 02 ×56	03 ×20 02 ×32
10	03 ×1 02 ×2	03 ×1 02 ×2	03 ×3 02 ×18	03 ×5 02 ×8	03 ×6 02 ×20	03 ×8 02 ×10	03 ×18 02 ×74	03 ×25 02 ×40
11	03 ×1 02 ×2	03 ×1 02 ×2	03 ×4 02 ×16	03 ×5 02 ×10	03 ×7 02 ×22	03 ×9 02 ×12	03 ×22 02 ×90	03 ×30 02 ×50
12	03 ×1 02 ×4	03 ×1 02 ×4	03 ×4 02 ×20	03 ×6 02 ×10	03 ×8 02 ×26	03 ×10 02 ×16	03 ×26 02 ×110	03 ×36 02 ×60
13	03 ×1 02 ×6	03 ×2 02 ×2	03 ×4 02 ×24	03 ×6 02 ×12	03 ×9 02 ×32	03 ×12 02 ×18	03 ×30 02 ×134	03 ×42 02 ×72
14	03 ×1 02 ×6	03 ×2 02 ×2	03 ×5 02 ×22	03 ×7 02 ×12	03 ×10 02 ×38	03 ×14 02 ×20	03 ×35 02 ×156	03 ×49 02 ×84
15	03 ×1 02 ×6	03 ×2 02 ×2	03 ×5 02 ×26	03 ×7 02 ×14	03 ×11 02 ×44	03 ×16 02 ×22	03 ×40 02 ×182	03 ×56 02 ×98
16	03 ×5 02 ×30	03 ×8 02 ×14	03 ×9 02 ×46	03 ×13 02 ×24	03 ×16 02 ×74	03 ×24 02 ×36	03 ×49 02 ×228	03 ×69 02 ×122
17	03 ×6 02 ×28	03 ×8 02 ×16	03 ×9 02 ×54	03 ×14 02 ×26	03 ×22 02 ×102	03 ×32 02 ×52	03 ×58 02 ×282	03 ×83 02 ×148
18	03 ×6 02 ×32	03 ×9 02 ×16	03 ×10 02 ×56	03 ×15 02 ×28	03 ×28 02 ×134	03 ×41 02 ×68	03 ×68 02 ×338	03 ×98 02 ×176
19	03 ×6 02 ×36	03 ×9 02 ×18	03 ×10 02 ×60	03 ×15 02 ×30	03 ×34 02 ×170	03 ×50 02 ×86	03 ×78 02 ×398	03 ×113 02 ×206
20	03 ×7 02 ×34	03 ×10 02 ×18	03 ×11 02 ×62	03 ×16 02 ×32	03 ×41 02 ×204	03 ×60 02 ×104	03 ×89 02 ×460	03 ×129 02 ×238

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

H.T. SL 1→10	H.T. SL 10→15	H.T. SL 15→20	Alt. H.T. from SL 1→10	Alt. H.T. from SL 10→15	Alt. H.T. from SL 15→20
03 ×18 02 ×74	03 ×22 02 ×108	03 ×49 02 ×278	03 ×25 02 ×40	03 ×31 02 ×58	03 ×73 02 ×140

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