Thanks for all the kind words!! ^_^
Using M&B is always a hard decision. The global version of KHUX has failed to establish any consistent, sane way of getting them, so spending them is a big deal. While I’m always a fan of saving for that one medal that will completely change your game, I also think holding onto something potentially useful because it “could be better later” is sort of dumb. So…
Key Art #5: Upright Speed, Str +3, Single target, 3 cost, x3.5 base. I’d say probably not. Though Upright Speed is a pretty good type right now, having a 150% single target isn’t half as useful as an AOE. You can’t roll traits with M&B so that +3 can’t be a +6. And with the release of medals that exceed +3 in Str and PSM Str (0.2 Kairi, Lingering Will, Seph EX) in the JP version, +3 Str will quickly be obsolete.
If you’re going to invest M&B into a high damage buff/debuff medal, I’d recommend waiting for a Tsum Tsum with Extra Attack or Dragon Maleficent. If you’re intent on using them now, Illustrated KH2 Sora is pretty good. General Defense Down will be the slowest buff to depreciate; in other words, -2 Def will be useful longer than +3 Str. The JP version already has a +6 Str medal, but only -2 Def.
tl;dr - Save for a medal with some good traits and/or hopefully -2 Def.
Hope this helps!
<3 KCM

