Benediction could add a RR effect on all party members in range. Maybe RR1 with 1 merit, and up to RR3 with more merits (each upgrade could cost 10 merit points, as well). That, or, as Valena said, it could raise the dead people in range...

Perfect Dodge may seem to be a crappy ability, I'm pretty sure no thief would say that they've never been happy to have Perfect Dodge to get out of a bad situation (or it would be a lie). Of course I'd like to have a useful damaging ability like other jobs, but really I would miss Perfect Dodge if they changed it to something else (making it dodge Ranged Attacks too would be nice, though -_- ). As for improvements with merits... 100% critical hits when striking from behind would be nice (criticals like Sneak Attack would be awesome ). Maybe each merit could increase the damage of those critical hits, starting with normal critical hits with one merit, up to "Sneak Attack" hits with capped merits!

Mijin Gakure... An automatic "Back to HP" would be useful (it sends you immediately back to your Home Point without asking, saving you 1 click and a few seconds in the process!)
More seriously, a Reraise effect would be nice, or an additional effect on the monster, as someone said before : Maybe a combination of a powerful Flash + Blind + Stun (caused by the "explosion"), and duration/power of the effects could be increased with merits.

Quote Originally Posted by Khamsin
BRD - Soul Pull
Allows your songs to claim even purple mobs and causes them to follow you regardless of hate; does not affect notorious monsters.

COR - Wild Pop
Causes the current zone to become repopulated, spawning all recently killed monsters instantly; does not affect notorious monsters.

RDM - Chainkill
The next monster your party kills will continue your current limit points chain, regardless of how much time has passed since the last monster died.

WAR - Mighty Merits
The amount of limit points earned by the party is doubled for the duration of the ability.

MNK - Hundred Limits
Every melee attack for the duration of this ability will earn the party a few extra limit points.
Nice ideas!
I got one too :
THF - Merit Dodge
Dodge all invites to merit parties. You won't receive any /tell for merit parties while Merit Dodge is active.

Oh wait, we already have that, and it's not a 2h, it's a Job Trait