Runes

==Skill Runes that can be skipped (or not taken)==
This is a page for all the Skill Runes that you can SKIP (or not taken) but still get the massive damage output. You can still take them if you want but not as high priority as the other Runes.
Before getting to the runes, I will explain some words I will be using in this Page
I will call Skill 1, Skill 2, Skill 3 and Skill 4 as S1, S2, S3, S4, respectively. Also the Runes will be number as 1 - 8 from top to bottom.
Example: S1 [1 3] means that for Skill 1 and the runes no. 1 and 3 can be skipped (or not taken). And S4 > S2 means that S4 is priority than S2.
* Sword: S4 > S2 > S3 > S1
# S1 [1 3]
# S2 Take all
# S3 [4 5] or [1 4 5] if has SSS Chick 1-piece costume 
# S4 Take all
* Staff: S3 > S2 > S4 > S1
# S1 [2 4]
# S2 [2]
# S3 Take all
# S4 Take all
* Bow: S1 > S4 > S3 > S2
# S1 [2] 
# S2 [4] 
# S3 [2] or [1 2] if has SSS Honeybee 1-piece costume 
# S4 Take all
* Dagger: S4 > S2 > S1 > S3
# S1 [3] 
# S2 [1]
# S3 [2]
# S4 Take all
Credits:
Sword: Edenlight
Bow & Dagger: Ellezard
Staff: Nate
Updates 5/1: RyuJin
==Unlocking Skill Runes Slots & Costs==
Skill runes are not readily available for use in the on set as each needs to be unlocked first (except rune slot no.1).
Here you can see each rune slots costs and unlocking requirement/s. 
 If you open rune slots in succession (1 --> 8)
Slot No.	Gemstone Cost	Unlocking Conditions
1 	Free 	Skill Lvl. 1
2 	100 	Skill Lvl. 10
3 	100 	Skill Lvl. 18
4 	100 	Skill Lvl. 26
5 	1000 	V2 Skill unlocked, Skill Lvl. 51
6 	1000 	V2 Skill unlocked, Skill Lvl. 60
7 	1000 	V2 Skill unlocked, Skill Lvl. 70
8 	1000 	V2 Skill unlocked, Skill Lvl. 80
Otherwise, unlocking ANY rune slot considered to be your 2nd-4th costs 100 Gems and ANY rune slots as your 5th-8th costs 1000 Gems each (regardless of slot no. indicated above).
* If you have unlocked "X"/8 slots means you can use "X" no. of skill runes at the same time regardless of order (e.g. Dagger S1 [1 3] means you only need 6 slots, so just buy rune slots 2-6 and level-up S1 to lvl. 80, then unequip slots 1 & 3 and equip slots 7 & 8 -- saving 2000 gems in the process).
TIP (Optional):
 You may opt to temporarily halt levelling-up a skill at lvl. 80 to unlock the last rune. Then, proceed to level-up the next priority skill to unlock corresponding skill rune slots, too.
Credit:
Priority skills & unlocking slots - RyuJin