Need some infos about some bosses?

Like the title said, I need some infos about Venena II (including those Sedem Coenubias as well), Demonic Quasar, Vulture, Hexter , Arachidemon, I already use the search function but nothing to be found, some infos like this:

+ Physical/ Magical Resistance
+ Proration (I only need the magic to physical/ normal to physical)
+ DEF/ MDEF


And btw one more question, does the DEF multiplier works like 1x for Normal, 2x for Hard, 4x for NM, 6x for Ulti ? I'm just curious.
Thank you in advance!!

 

Venena2
Phys/Magic res: 7%
Proration: Normal 1%, Phys 1%, Magic 5%
DEF: 820 MDEF: 586

Sedems: unknown

DEF/MDEF, ATK, HP, FLEE, HIT of bosses work like that is what I heard.