BL Set

[Horothewise]

in my opinion the problem is that bm3 changes bl build a lot...
classic bm2 build is amp and atk preferred then cd and lifesteal... made you hit hard and durable because of leech with clawretarget..
bm3 is leeching soso and cd is better than amp i guess but im still not used t oit nor do i have fatal 2 and 3... time will tell
but as general advice let me say go for stita amp and get like 4x rate doesnt matter how.
build for amp and atk and get some lifeleech
no mystic or higher needet on armor
as for weapons id say mith 7 amp and mith 20 dmg is best.. as high as possible ofc
a solid build would be:
2xrol+1 at least (replace merga killian +2 +3)
2x cr+1 (tyrant +2/+3)
aop+5
bof+x (slot would be best)
ve+x
stita boots 7 amp & as much max hp steal as possibru
stita gloves 7 amp 1 slot hp steal rest filled with atk
stita/osm suit 7 amp (50 hp)
osm/stita 8/20 helm or higher
belt of dex +4 will give at least one atk max 2 atk more so up to you if dex or hp belt
and a 7 amp and a 20 dmg mith bl...
everything as highly upgraded as possible!
that was a nice build when i was a medium tear blader and it got me through almost everything

as for the runes id say skip everything connected to xp since its gives you no actual combat benefit... take str dex int runes since that will be 21 extra points and atk scales at rate 4 so at least 5 atk more.
all in all i think when playing blader the most important thing is timing and beeing able to retarget at a decent level. equipment isnt that important for most of the dungeons...

as reference my build now:
osm helm +9 8/20
sigsuit 7/50 +11
stita gloves 7amp/3hpsteal/7atk +15
stita boots 7/40 +13
2x redosm bl 7/20 +15 and +12
aop+5
2x cr+2
merga + rol+2
2xbof+3 amp slot
2x ve+6
sigeof +7
hp belt +4

i hope this was at least somewhat helpful

[Hashed]

My advice would be to get as much rate as possible (bm3 is basically rate based, and rate also helps bm2) then go for a balance between cd and amp. I'm on NA so it's going to be slightly different, but the gear I'm going for is as follows:

SIG blade +15 7amp 24cd (I think Forcy 3 amp 20cd is better at +13 or greater, but NA hasn't had sghh like EU)
Redosm blade +15 7 rate 40cd - Need to try and make this, will be quite expensive lol
Bluestin helm +11 7 rate 40cd - Current helm

This, with RoL2, Killian Ring, Leth Ring, CR2, 7 amp other gear (pretty much standard gear with max rate wherever possible), allows for 53 rate (before skills, good for bm2/3), ~60 amp (depending on pet, runes and gear), and ~180 cd (also depends on pet, runes, ammy and bracelets). I've done many calculations and that's one of the best I can come up with (I'm on a very tight budget)