General

P/c on A Lot of Mastery Books

So I recently came back from a long break and blew a good 100m on mastery books, looking for pc ( preferably in scania )
`The following are the books I keptones I didn't remotely know what they'd be worth :

(Demon Avenger) Nether Slice 30
(Demon Avenger) Exceed Execution 30
(Demon Avenger) Advanced Desperado Mastery 20
(Bishop) Advanced Blessing 30
(Kaiser) Kasen 30
(Kaiser) Grand Armour 20
(Luminous) Magic Mastery 20
(Luminous) Dark Crescendo 20
(Demon Slayer) Infernal Concussion 30
(Demon Slayer) Obsidian Skin 30
(Mercedes) Ancient Warding 20 & 30
(Mercedes) Dual Bowgun Expert 30
(Night Lord) Claw Expert 30
(Evan) Flame Wheel 20
(Kanna) Falling Sakura 20
(Battle Mage) Battle Rage 20
(Phantom) Tempest 30
(Phantom) Cane Expert 20
(Hayato) Shinsoku 20
(4th Job Mage) Arcane Aim 30