Unlocking a Myth

"Unlocking a Myth" can refer to any of twenty quests to unlock a job specific Weapon Skill from the base version of a Mythic Weapon obtained from NMs in Nyzul Isle.
You can have multiple versions of the quest open at the same time.
Quest 	Weapon 	Weapon Skill
Unlocking a Myth (Warrior) 	Sturdy Axe 	King's Justice
Unlocking a Myth (Monk) 	Burning Fists 	Ascetic's Fury
Unlocking a Myth (White Mage) 	Werebuster 	Mystic Boon
Unlocking a Myth (Black Mage) 	Mage's Staff 	Vidohunir
Unlocking a Myth (Red Mage) 	Vorpal Sword 	Death Blossom
Unlocking a Myth (Thief) 	Swordbreaker 	Mandalic Stab
Unlocking a Myth (Paladin) 	Brave Blade 	Atonement
Unlocking a Myth (Dark Knight) 	Death Sickle 	Insurgency
Unlocking a Myth (Beastmaster) 	Double Axe 	Primal Rend
Unlocking a Myth (Bard) 	Dancing Dagger	Mordant Rime
Unlocking a Myth (Ranger) 	Killer Bow 	Trueflight
Unlocking a Myth (Samurai) 	Windslicer 	Tachi: Rana
Unlocking a Myth (Ninja) 	Sasuke Katana 	Blade: Kamu
Unlocking a Myth (Dragoon) 	Radiant Lance 	Drakesbane
Unlocking a Myth (Summoner) 	Scepter Staff 	Garland of Bliss
Unlocking a Myth (Blue Mage) 	Wightslayer 	Expiacion
Unlocking a Myth (Corsair) 	Quicksilver 	Leaden Salute
Unlocking a Myth (Puppetmaster)	Inferno Claws 	Stringing Pummel
== Weapon Skill Point Requirements ==
Your current number of completed floors is used to determine how many points are needed. For example, if you received the weapon and started the quest with 90 floors completed, and then did a 91-95 run, you only need 580 points to unlock the Weapon Skill. If you already did 580 points with the weapon, you will get the weaponskill when the progress is saved to your Runic Disc.
:
Floor	Point
100 	250
80-99 : 500+20*(99-x)	
80-99 : 500+20*(99-x)
95 	580
90 	680
85 	780
80 	880
60-79 : 1000+40*(79-x)	
60-79 : 1000+40*(79-x)
75 	1160
70 	1360
65 	1560
60 	1760
40-59 : 2000+80*(59-x)	
40-59 : 2000+80*(59-x)
55 	2320
50 	2720
45 	3120
40 	3520
20-39 : 4000+160*(39-x)	
20-39 : 4000+160*(39-x)
35 	4640
30 	5440
25 	6240
20 	7040
01-19 : 8000+320*(19-x)	
01-19 : 8000+320*(19-x)
15 	9280
10 	10880
5 	12480
0 	16000