Thread:Ragnarok6354/@comment-25856250-20150227142728/@comment-11148831-20150307032958

Ragnarok6354 wrote: '''NOTE 2: To level up a skill with this method, you need the same rarity. UR for UR, SR for SR, R for R.'''

Yes. Like I said, you just need the same rarity and attribute to level up a card's skill with a support card.