Will just copypaste this from FFXIAH, but these are my thoughts on RUN merits...

Rune Enhancement Effect- This one confuses me. Will we simply deal an extra 2 damage per rune, or will the increase be larger than that?

Vallation Effect- If the extra MDB has a substantial enough effect, like One For All, this could be worthwhile.

Lunge Effect- Lunge rarely misses anyways, even on high-level mobs.

Pflug Effect- I have never gotten this damn JA to work. I can have 3 matching runes, the appropriate bar- spell, and still get slammed with status effects all day. I get more random resists with Tenacity alone than when I actively try to prevent one.

Gambit Effect- Reduced recast on an already short-lived ability? Why not increase the effect or the duration? Then it might be somewhat useful.

Battuta- Probably one of the few merits that I actually went "Wow, that might not be too bad."

Rayke- Gambit 2.0, but with the increased duration that Gambit should've gotten. If the effects stack it could make for some sick Lunges, but I wouldn't be surprised if they share a recast ala Collaborator/Accomplice.

Inspiration- I cast three, maybe four spells while I'm actively tanking: Flash, Foil, Phalanx, Regen IV. That's it. Anything else either takes too long or isn't worth the MP cost.

Sleight of Sword- Because Great Swords swing so fast that we actually needed this?