Where to farm Yellow B. Stones

28 stages drop Yellow B. Stones, ranked by energy per item.

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Limited clears per run(28)

These maps allow a set number of clears each time they run.

#	Stage	Cost	Drops			Difficulty
1	Erupting Cavern Area 171 clear per runJinfore Volcano	250 energy	35%	0.35	714	★11
2	Erupting Cavern Area 181 clear per runJinfore Volcano	250 energy	35%	0.35	714	★11
3	Erupting Cavern Area 191 clear per runJinfore Volcano	250 energy	35%	0.35	714	★11
4	Infernal Crater Area 111 clear per runJinfore Volcano	250 energy	25%	0.25	992	★11
5	Infernal Crater Area 121 clear per runJinfore Volcano	250 energy	25%	0.25	992	★11
6	Infernal Crater Area 131 clear per runJinfore Volcano	250 energy	25%	0.25	992	★11
7	Infernal Crater Area 141 clear per runJinfore Volcano	250 energy	25%	0.25	992	★11
8	Infernal Crater Area 151 clear per runJinfore Volcano	250 energy	25%	0.25	992	★11
9	Infernal Crater Area 161 clear per runJinfore Volcano	250 energy	25%	0.25	992	★11
10	Lava Caves Area 51 clear per runJinfore Volcano	250 energy	24%	0.24	1,042	★10
11	Lava Caves Area 61 clear per runJinfore Volcano	250 energy	24%	0.24	1,042	★10
12	Lava Caves Area 71 clear per runJinfore Volcano	250 energy	24%	0.24	1,042	★10
13	Lava Caves Area 81 clear per runJinfore Volcano	250 energy	24%	0.24	1,042	★10
14	Lava Caves Area 91 clear per runJinfore Volcano	250 energy	24%	0.24	1,042	★10
15	Lava Caves Area 101 clear per runJinfore Volcano	250 energy	24%	0.24	1,042	★10
16	Magma Tunnel Area 41 clear per runJinfore Volcano	200 energy	12%	0.12	1,667	★9
17	Magma Tunnel Area 31 clear per runJinfore Volcano	200 energy	8%	0.08	2,500	★9
18	Magma Tunnel Area 21 clear per runJinfore Volcano	200 energy	6%	0.06	3,333	★8
19	Scorching Sands Area 111 clear per runAshvini Desert	250 energy	5%	0.05	5,000	★10
20	Scorching Sands Area 121 clear per runAshvini Desert	250 energy	5%	0.05	5,000	★10
21	Scorching Sands Area 131 clear per runAshvini Desert	250 energy	5%	0.05	5,000	★10
22	Scorching Sands Area 141 clear per runAshvini Desert	250 energy	5%	0.05	5,000	★10
23	Scorching Sands Area 151 clear per runAshvini Desert	250 energy	5%	0.05	5,000	★10
24	Scorching Sands Area 161 clear per runAshvini Desert	250 energy	5%	0.05	5,000	★10
25	Sandstorm Area 171 clear per runAshvini Desert	250 energy	5%	0.05	5,000	★11
26	Sandstorm Area 181 clear per runAshvini Desert	250 energy	5%	0.05	5,000	★11
27	Sandstorm Area 191 clear per runAshvini Desert	250 energy	5%	0.05	5,000	★11
28	Magma Tunnel Area 11 clear per runJinfore Volcano	200 energy	4%	0.04	5,000	★8

Erupting Cavern Area 171 clear per runJinfore Volcano
★11
250 energy
Drops: 35%Avg per clear: 0.35Energy each: 714
Erupting Cavern Area 181 clear per runJinfore Volcano
★11
250 energy
Drops: 35%Avg per clear: 0.35Energy each: 714
Erupting Cavern Area 191 clear per runJinfore Volcano
★11
250 energy
Drops: 35%Avg per clear: 0.35Energy each: 714
Infernal Crater Area 111 clear per runJinfore Volcano
★11
250 energy
Drops: 25%Avg per clear: 0.25Energy each: 992
Infernal Crater Area 121 clear per runJinfore Volcano
★11
250 energy
Drops: 25%Avg per clear: 0.25Energy each: 992
Infernal Crater Area 131 clear per runJinfore Volcano
★11
250 energy
Drops: 25%Avg per clear: 0.25Energy each: 992
Infernal Crater Area 141 clear per runJinfore Volcano
★11
250 energy
Drops: 25%Avg per clear: 0.25Energy each: 992
Infernal Crater Area 151 clear per runJinfore Volcano
★11
250 energy
Drops: 25%Avg per clear: 0.25Energy each: 992
Infernal Crater Area 161 clear per runJinfore Volcano
★11
250 energy
Drops: 25%Avg per clear: 0.25Energy each: 992
Lava Caves Area 51 clear per runJinfore Volcano
★10
250 energy
Drops: 24%Avg per clear: 0.24Energy each: 1,042
Lava Caves Area 61 clear per runJinfore Volcano
★10
250 energy
Drops: 24%Avg per clear: 0.24Energy each: 1,042
Lava Caves Area 71 clear per runJinfore Volcano
★10
250 energy
Drops: 24%Avg per clear: 0.24Energy each: 1,042
Lava Caves Area 81 clear per runJinfore Volcano
★10
250 energy
Drops: 24%Avg per clear: 0.24Energy each: 1,042
Lava Caves Area 91 clear per runJinfore Volcano
★10
250 energy
Drops: 24%Avg per clear: 0.24Energy each: 1,042
Lava Caves Area 101 clear per runJinfore Volcano
★10
250 energy
Drops: 24%Avg per clear: 0.24Energy each: 1,042
Magma Tunnel Area 41 clear per runJinfore Volcano
★9
200 energy
Drops: 12%Avg per clear: 0.12Energy each: 1,667
Magma Tunnel Area 31 clear per runJinfore Volcano
★9
200 energy
Drops: 8%Avg per clear: 0.08Energy each: 2,500
Magma Tunnel Area 21 clear per runJinfore Volcano
★8
200 energy
Drops: 6%Avg per clear: 0.06Energy each: 3,333
Scorching Sands Area 111 clear per runAshvini Desert
★10
250 energy
Drops: 5%Avg per clear: 0.05Energy each: 5,000
Scorching Sands Area 121 clear per runAshvini Desert
★10
250 energy
Drops: 5%Avg per clear: 0.05Energy each: 5,000
Scorching Sands Area 131 clear per runAshvini Desert
★10
250 energy
Drops: 5%Avg per clear: 0.05Energy each: 5,000
Scorching Sands Area 141 clear per runAshvini Desert
★10
250 energy
Drops: 5%Avg per clear: 0.05Energy each: 5,000
Scorching Sands Area 151 clear per runAshvini Desert
★10
250 energy
Drops: 5%Avg per clear: 0.05Energy each: 5,000
Scorching Sands Area 161 clear per runAshvini Desert
★10
250 energy
Drops: 5%Avg per clear: 0.05Energy each: 5,000
Sandstorm Area 171 clear per runAshvini Desert
★11
250 energy
Drops: 5%Avg per clear: 0.05Energy each: 5,000
Sandstorm Area 181 clear per runAshvini Desert
★11
250 energy
Drops: 5%Avg per clear: 0.05Energy each: 5,000
Sandstorm Area 191 clear per runAshvini Desert
★11
250 energy
Drops: 5%Avg per clear: 0.05Energy each: 5,000
Magma Tunnel Area 11 clear per runJinfore Volcano
★8
200 energy
Drops: 4%Avg per clear: 0.04Energy each: 5,000

Needs an Enigma Clock(3)

An Enigma Clock opens one Enigma stage at random.

#	Stage	When	Cost	Drops			Difficulty
1	Yellow Stone Volcano IV1 clear per runHunter's Map IV	Needs an Enigma Clock	300 energy	70%, ×2 30%	1.3	231	★11
2	Yellow Stone Volcano III1 clear per runHunter's Map III	Needs an Enigma Clock	300 energy	100%	1	300	★10
3	Yellow Crystal VolcanoPurple Crystal ForestOpens after Yellow Stone Volcano IV, 40% chance	Needs an Enigma Clock	300 energy	50%	0.2	1,500	★11

Yellow Stone Volcano IV1 clear per runHunter's Map IV
★11
Needs an Enigma Clock300 energy
Drops: 70%, ×2 30%Avg per clear: 1.3Energy each: 231
Yellow Stone Volcano III1 clear per runHunter's Map III
★10
Needs an Enigma Clock300 energy
Drops: 100%Avg per clear: 1Energy each: 300
Yellow Crystal VolcanoPurple Crystal ForestOpens after Yellow Stone Volcano IV, 40% chance
★11
Needs an Enigma Clock300 energy
Drops: 50%Avg per clear: 0.2Energy each: 1,500

Once per run(2)

Tower floors and gauntlet levels give their reward on the first clear each time the event runs.

Stage	When	Cost	Reward	Difficulty
Eggs of Chaos Lv. 183 clears per runSuffering Spring!		130 energy	100%	★10
Stagebuilding Witch: Cycle 93 clears per runWalpurgisnacht		130 energy	100%	★9

Eggs of Chaos Lv. 183 clears per runSuffering Spring!
★10
130 energy
Reward: 100%
Stagebuilding Witch: Cycle 93 clears per runWalpurgisnacht
★9
130 energy
Reward: 100%