Force Blader’s BM1 – Force Enchanter in my opinion is the strongest
BM1 in all CABAL Online classes. But unlike other Battle Modes, Force
Enchanter requires other skills to be powerful.
It is extremely important for Force Bladers to have these magic skills:

Lightning Cannon increases attack.

Aqua Cannon boosts HP and MP.

Stone Cannon increases defense.

Wind Cannon increases attack rate and defense rate.
BM1 also relies on your magic attack. Higher magic attack means
stronger BM1. As for Rising Force patch, adding points to dexterity(DEX)
no longer increase your magic attack. We will now have to rely on
secondary weapon (Orb/Crystal) grade and enchant level for magic attack
bonus (essence runes and external buffs also applies).
Rising Force Update
Rising Force may have nerfed Force Bladers a bit (as a part of the
rebalancing), we can only use one root skill at time and if resisted, it
puts the skill on cool time. Also, as I have mentioned, adding points
to DEX no longer increase magic attack.

What is cool about the Rising Force update for Force Bladers is that
we now have an astral passive skill just like Force Archers and Force
Shielders.
BM1 removes all your self buffs including blade enchants and replace
it with the strongest magic skill(the cannons) which reduces our
critical rate and damage, but because of Astral Enhancement, with
Killian’s Ring we can still have 36% critical rate. We only need to
replace one of our rings with Ring of Luck +2 or just cast Battle Aura
to get back to 50% critical rate.
Tips
Equip the highest grade Orb/Crystal as possible.
Blade enchant effect is removed when in Force Enchanter mode.
Penetration, damage reduce and accuracy from blade buff is also removed.
But because of Astral Enhancement, you don’t have to worry about the
lost stats.
In the previous patches, it was necessary to cast Battle Aura before
Force Enchanter for stronger BM1 and additional critical rate. Battle
Aura adds a little magic attack which in turn strengthen your BM1. With
Rising Force patch, because of Astral Enhancement, it is not necessary
to cast Battle Aura before Force Enchanter. Instead of casting Battle
Aura before BM1, use it to extend BM1′s duration.
Stay tuned for more guides!