To proc red here is a list of what works.

Weapon Skills

Club: Seraph Strike

Dagger: Cyclone, Energy Drain

Great Katana: Tachi:Jinpu,Tachi:Koki

Great Sword: Freezebite

Katana: Blade: Ei

Polearm: Raiden Thrust

Scythe: Shadow of Death

Staff: Sunburst,Earth Crusher

Sword: Red Lotus Blade, Seraph Blade



Element Weapon Skills

Light: Tachi:Koki, Seraph Strike, Sunburst, Seraph Blade

Darkness: Energy Drain, Blade: Ei, Shadow of Death

Fire: Red Lotus Blade

Ice: Freezebite

Wind: Cyclone, Tachi: Jinpu

Thunder: Raiden Thrust

Earth: Earth Crusher

Water: None

To Proc Blue "!!" Blue Weakness Triggers

gained by using a specific physical Weapon Skill on the mob.
■The
required WS will be one of a set of 45 WS of the Slashing, Piercing, or Blunt variety (15 WS in each group). Which type of WS is required is based on what game time it is when the NM is claimed.
■Greatly enhances drop rate for equipment and weapon(s). However, note that for particularly rare drops, it is still advised to combine this with Treasure Hunter or Bounty Shot for best results.
■Inflicts Amnesia on the mob. The message displayed in the log will read:
"Your attack staggers the fiend!
The fiend is unable to use special attacks."


■The table below lists all reported Physical Weapon Skills triggering , depending on the Vana'diel time of claim/force pop:
■If a player possesses the Abyssite of Discernment and strikes a NM with any physical WS (it does not have to be any of the WS listed below), the player has a chance to receive a message indicating what class of weapon (i.e. Sword, Dagger, etc.) the correct weakness trigger WS belongs to.


7:00-14:00 - Piercing~ Weapon Type Weapon Skills

Archery: Sidewinder Blast Arrow Arching Arrow Empyreal Arrow -
Marksmanship: Slug Shot Blast Shot Heavy Shot Detonator -
Dagger: Shadowstitch Dancing Edge Shark Bite Evisceration -
Polearm: Skewer Wheeling Thrust Impulse Drive - -

14:00-22:00 - Slashing~ Weapon Type Weapon Skills

Sword: Vorpal Blade Swift Blade Savage Blade - -
Katana: Blade: Ten Blade: Ku - - -
Axe: Mistral Axe Decimation - - -
Scythe: Cross Reaper Spiral Hell - - -
Great Axe: Full Break Steel Cyclone - - -
Great Katana: Tachi: Gekko Tachi: Kasha - - -
Great Sword: Spinning Slash Ground Strike - - -

22:00-7:00 - Blunt~ Weapon Type Weapon Skills

Club: Skullbreaker True Strike Judgment Hexa Strike Black Halo
Hand-to-Hand: Raging Fists Spinning Attack Howling Fist Dragon Kick Asuran Fists
Staff: Heavy Swing Shell Crusher Full Swing Spirit Taker Retribution