I only have Brilliant summer. Were there any other limited time codes from before summer and will there ever be a chance to get them again?
Memories of Lunar Sea ( art ), Anniversary Blonde ( Buster ), and Royal Brand ( quick ). Yes, these Mystic Code Will be released at Davinci Shop later though they cost rare prism. For more Complete information about the usage or release date you can check FGO Cirnopedia. For myself i gonna hunt for the Royal Brand one, sure really2 fun experimenting these MC.
Some of them Will be available later, Fate/Accel Zero for 2 years from now and for the rest just pray for it to come later.
Honestly when come to myself i don't even think for attending the reruns( freakingly long time for availability reason ). I will just buy this MC with Rare prism later.
