Thread:Ragnarok6354/@comment-25856250-20150227142728/@comment-11148831-20150228060655

Uhm.


 * 1) You have to sacrifice cards that's supposed to have the same EXACT skill.
 * 2) Or sacrifice a card that's specially used to level up a cards skill. (Not available for EN version yet)

Ex. 1:
 * This Rare Honoka can be used to level up SR Nico's skill because they have the same exact skill. NOTE: Chances to level up a skill with this method is NOT 100%

Ex. 2:
 * For this SR 220 Maki, you need a card that has the same "Once-in-a-Year Finest Clothes" skill to level up her skill. In short, another SR 220 Maki. This rule applies to most SRs and URs. NOTE: Chances to level up a skill with this method is NOT 100%

Ex. 3: NOTE: Chances to level up a skill with this method is 100% '''NOTE 2: To level up a skill with this method, you need the same rarity. UR for UR, SR for SR, R for R.'''
 * This example is for point number 2, which is still not available for EN version.
 * For example, you have UR 196 Eli but you don't have the same exact UR 196 Eli. You can use UR 388 Kotori's Mom to level up this card's skill.