Alteration of Soul Greatsword developed by sorcerers of the Undead Legion of Farron.
The Legion has a tendency to emphasize speed over power, and this practical alteration of an existing sorcery is no exception."
- Bought from Orbeck of Vinheim for 3,000 souls
- Farron Flashsword inflicts (Spell Buff * 1.035) magic damage before resistances.
- Cast speed is very fast, afterwards it uses the same combo as a Straightsword
- Interrupts enemies with each hit.
- Does not guarantee a 2-hit combo.
- Can be cast in a combo, like Farron Dart.
- Has a rolling attack and a running attack that both skip the casting animation.
- Has variable range, reaching as low as a short Greatsword and as high as an Ultra Greatsword.
- Can be parried if the catalyst is caught.
- Since the sword generates at the catalyst casting point (where spells come out from) and the staff has a hitbox, a longer catalyst results in a considerable upgrade to the attack's reach.
- The Izalith Staff achieves the longest range of this spell.
- The Preacher's Right Arm presents a good synergy with it's Feasting Branch weapon skill.
- The hitbox of the catalyst exists as well as the hitbox of the spell, with a second hitbox extending to the spell itself. This means the entire catalyst has the entire damage of the spell, and the catalyst itself does minor damage with it.
- As a result, the Immolation Tinder can inflict fire damage with this spell, pairing well with Frostbite.
- Sometimes, when the user is staggered, the staff hitbox will connect, but the spell hitbox won't, resulting in very low damage numbers.
- This ironically means you get the most damage out of Flashsword by hitting someone at point blank rather than using the long reach to stay safe, though the damage increase is very minimal, so maintaining distance is still preferable.
- This may be a holdover from the Straightsword moveset used for Flashsword, a trait which Soul Greatsword doesn't replicate on account of using a unique swing.
- Since it has a melee hitbox from the catalyst, this spell can actually be parried by someone within the catalyst's reach.
- Since it uses a weapon moveset, a combo can be held until the player blends into their idle animation or enters a new animation (rolling, walking, etc.)
- This spell isn't especially useful on its own. It has a high FP cost to damage ratio, but since it doesn't combo into itself it can't compare to a real weapon. However, it's quite good for enhancing a staff's natural moveset, and as mentioned with the Immolation Tinder, this can be used to complement certain spells with clever use. It can also true combo out of a Heysel Pick two-handed R1, which can grant more pure magic damage on occasion.
- There's a minor visual bug when casting Soul Greatsword right after casting this spell in which the Greatsword effect appears before the cast and at the tip of the catalyst. This is only visual, however, as when the Greatsword cast comes out the spell behaves as normal.