Dark Souls Pyromancy Guide

Acid Surge
Uses: 2
Slots: 1
Acquisition: Painted World of Arianmis
Creates a large cloud that severely cuts into an opponent's weapon and armor durability. Not so useful for enemies but great for PvP. Properly cast it will destroy the opponent's equipment and weight things in your favor as long as they lack the means to repair their equipment.

Combustion
Uses: 16
Slots: 1
Acquisition: Laurentius of the Great Swamp, Quelaana of Izalith, 500 souls
A quick, very short range spell. Great for quick damage.

Great Combustion
Uses: 8
Slots: 1
Acquisition: Quelaana of Izalith, 5,000 souls
A quick, short range spell. It does more damage than Combustion. Great for those who have high physical defense but low fire resistance.

Fireball
Uses: 8
Slots: 1
Acquisition: Laurentius of the Great Swamp, Quelaana of Izalith, 800 Souls
Default Pyromancer spell. Short range spell with burst at the end of it.

Fire Orb
Uses: 4
Slots: 1
Acquisition: Laurentius of the Great Swamp, Quelaana of Izalith, 8,000 Souls
Increased Area of Effect at the burst end of the spell. Increased damage.

Great Fireball
Uses: 4
Slots: 1
Acquisition: Quelaana of Izalith, 20,000 Souls
Greater Area of Effect at the burst end of the spell. Increased damage.

Great Chaos Fireball
Uses: 4
Slots: 2
Acquisition: Convenant: Chaos Servant
Largest Area of Effect at the burst end of the spell. Lava is left at point of impact. You are immune to it but all enemies are subject to it.

Firestorm
Uses: 20
Slots: 1
Acquisition: Quelaana of Izalith, 30,000 Souls
Slow casting but huge area of effect. The spell casts a small number of pillars in the area which appear slightly at random. Each casting takes 20 uses.

Fire Tempest
Uses: 20
Slots: 1
Acquisition: Event with Quelaana of Izalith
Slow casting but huge area of effect. The spell casts a small number of pillars in the area which appear slightly at random. The pillars have increased size, radius and damage. Each casting takes 20 uses.

Chaos Storm
Uses: 20
Slots: 2
Acquisition: Convenant: Chaos Servant
Slow casting but huge area of effect. The spell casts a small number of pillars in the area which appear slightly at random. The pillars have increased size, radius and damage. Like the other Chaos spell, there is residual lava left after the pillars. Each casting takes 20 uses.

Fire Surge
Uses: 80
Slots: 1
Acquisition: Engorge Zombies Drop
A very unique spell. Press the spell button for a quick burst but you can also hold it to sustain the same spell for longer. You can move while casting this spell.

Fire Whip
Uses: 80
Slots: 1
Acquisition: Quelaana of Izalith, 10,000 Souls
Better range than Fire Surge. You cannot move while casting, making it better for use in narrow areas. Each casting uses 21 castings.

Chaos Fire Whip
Uses: 80
Slots: 1
Acquisition: Demon Ruins/Lost Izalith
Increased range and damage over Fire Whip. You cannot move while casting. Each casting takes 21 uses.

Flash Sweat
Uses: 3
Slots: 1
Acquisition: Laurentius of the Great Swamp: 2,000 Souls
Decreases fire damage by 45% during the duration of the spell. It last 60 seconds.

Iron Flesh
Uses: 3
Slots: 1
Acquisition:  Laurentius of the Great Swamp: 2,000 Souls
Decreases most incoming damage to 30%. The exception is lightning damage which is increased by 45%. Your movement is greatly hampered while it is in effect.

Poison Mist
Uses: 3
Slots: 1
Acquisition: Eingyi: 10,000 souls. Blighttown/Quelaag's Domain
As Acid Surge, creates large cloud that remains in place for 8 seconds. It builds up their poison which starts to damage them after it fills. It does 3 damage every 0.8 seconds.

Power Within
Uses: 1
Slots: 1
Acquisition: Blighttown/Quelaag's Domain
While in effect your attacks receive a 40% increase and your stamina regeneration is also increased. You take 1 hp damage per second the spell is active.

Toxic Mist
Uses: 1
Slots: 1
Acquisition: Eingyi: 25,000 souls
A powerful version of Poison Mist. It inflicts Toxin status and reduces stamina regeneration. It also does 6 HP damage per second.

Undead Rapport
Uses: 7
Slots: 1
Acquisition: Quelaana of Izalith: 10,000 Soul
You can touch an enemy who will then become your ally for 30 seconds.