Leveling

Leveling up Servants is essential for completing harder content. Servants gain levels by sacrificing other Servants or Experience Cards to them. This can be performed from Servant Reinforcement, the first option in the Synthesis menu.
As of Version 1.16.0, the maximum number of slots for "Sacrifice" was increased from 5 to 20.

Leveling Strategy

To level up Servants efficiently, simply use the best Experience Cards you can get, and aim to only reinforce with the matching class bonus whenever possible. If you want to level up classes other than the original seven, you may want to save the ALL-type Experience cards since only the original seven classes have their own dedicated class EXP cards.

Every time you feed EXP to servants or craft essences, there's a chance to result in a 大成功 Great Success (2x EXP acquired) or 極大成功 Super Success (3x EXP acquired) in JP server; Super Success (2x EXP acquired) or Great Success (3x EXP acquired) in US server.

JP name	US name	EXP acquired	Chance
大成功 (Great Success)	Super Success	2x	10%
極大成功 (Super Success)	Great Success	3x	2%

Once your Servants' levels become higher, the amount of experience needed to gain a single level becomes steep. At this point, it is best to reinforce using only 4★ and 5★ EXP cards, and burn 3★ XP cards for Mana Prisms instead.

Stars	Normal EXP	Class Bonus
1	1,000	1,200
2	3,000	3,600
3	9,000	10,800
4	27,000	32,400
5	81,000	97,200

As far as farming EXP cards, because of the huge discrepancy in usefulness between 3★ and 4★ EXP cards, it is best to run the 40 AP daily training field quest if possible.

Growth Curves

Not all Servants gain equal stats upon leveling up. Each Servant has their own Growth Curve, which is what defines how many stats they get every time they level up. Growth curve trends are viewed over the entire leveling process, from level 1 to max level after ascending all 4 times.

Grailing follows a special curve which advances independently from the servant's own growth curve. 5 grailings from lv90 to lv100 grant roughly 1000 HP&Atk varying from each servant.

• Linear: Gain the same amount of stats every time.
• S: Gain few stats per level at the beginning and end, but a lot in the middle.
• Reverse S: Gain a lot of stats per level at the beginning and end, but very few in the middle.
• Semi S: Like S, but not as good at the middle, and not as bad at the beginning and end.
• Semi Reverse S: Like Reverse S, but not as good at the beginning and end, and not as bad in the middle.
• Semi Reverse S to Linear: Semi Reverse S at first, but changes to Linear in the middle.

• Linear
• S
• Reverse S
• Semi S
• Semi Reverse S
• Semi Reverse S to Linear

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Growth Curve	Servants
Linear

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Growth Curve	Servants
S

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Growth Curve	Servants
Reverse S

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Growth Curve	Servants
Semi S

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Growth Curve	Servants
Semi Reverse S

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Growth Curve	Servants
Semi Reverse S to Linear

Servant EXP Table

Servant EXP Table
Level	Exp Needed	Next Level Up	Level	Exp Needed	Next Level Up	Level	Exp Needed	Next Level Up
1	0	100	35	714000	63000	69	5474000	241500
2	100	300	36	777000	66600	70	5715500	248500
3	400	600	37	843600	70300	71	5964000	255600
4	1000	1000	38	913900	74100	72	6219600	262800
5	2000	1500	39	988000	78000	73	6482400	270100
6	3500	2100	40	1066000	82000	74	6752500	277500
7	5600	2800	41	1148000	86100	75	7030000	285000
8	8400	3600	42	1234100	90300	76	7315000	292600
9	12000	4500	43	1324400	94600	77	7607600	300300
10	16500	5500	44	1419000	99000	78	7907900	308100
11	22000	6600	45	1518000	103500	79	8216000	316000
12	28600	7800	46	1621500	108100	80	8532000	324000
13	36400	9100	47	1729600	112800	81	8856000	332100
14	45500	10500	48	1842400	117600	82	9188100	340300
15	56000	12000	49	1960000	122500	83	9528400	348600
16	68000	13600	50	2082500	127500	84	9877000	357000
17	81600	15300	51	2210000	132600	85	10234000	365500
18	96900	17100	52	2342600	137800	86	10599500	374100
19	114000	19000	53	2480400	143100	87	10973600	382300
20	133000	21000	54	2623500	148500	88	11356400	391600
21	154000	23100	55	2772000	154000	89	11748000	400500
22	177100	25300	56	2926000	159600	90	12148500	418500
23	202400	27600	57	3085600	165300	91	12567000	454900
24	230000	30000	58	3250900	171100	92	13021900	510000
25	260000	32500	59	3422000	177000	93	13531900	584500
26	292500	35100	60	3599000	183000	94	14116400	678500
27	327600	37800	61	3782000	189100	95	14794900	792500
28	365400	40600	62	3871100	195300	96	15587400	926900
29	406000	43500	63	4166400	201600	97	16514300	1082100
30	449500	46500	64	4368000	208000	98	17596400	1258500
31	496000	49600	65	4576000	214500	99	18854900	1456500
32	545600	52800	66	4790500	221100	100	20311400	NA
33	598400	56100	67	5011600	227800
34	654500	59500	68	5239400	234600