The basic fire spell which all followers of the Orcish cults (the underworld) first learn. It channels the flames of Hades through the caster's body, allowing the wielder to direct it as a missile at anyone he chooses. It is a dangerous magik to employ, but the effects seem to delight even the lowest circle of Warlock to no end.
Magiks involving the cardinal elements of the universe are favorites of the Mages. The Fireball is launched from the palms of the Mage and streaks like a comet blazing across the battlefield - slamming its fiery bulk into whatever stands in its path.
Fireball is a basic Mage spell in Hearthstone. The flavor text reads: "This spell is useful for burning things. If you're looking for spells that toast things, or just warm them a little, you're in the wrong place."
The TCG art for Incinerate is used for Fireball in Hearthstone.
Patch 5.0.4(2012-08-28): Now a Fire specialization ability. Base cast time reduced to 2.25 sec (was 2.5 sec).
Patch 4.3.2(2012-01-31): Fireball damage has been reduced by roughly 6%.
Patch 4.3.0(2011-11-29): Damage increased by approximately 17%.
Patch 4.0.6(2011-02-08): Mana cost has been reduced to 9% of base mana.
Hotfix (2011-01-18):The mana costs of the following mage spells have been reduced, but they still require the previous percentage of base mana in order to be cast: [Arcane Barrage] (11% of base mana), [Arcane Blast] (7% of base mana), and Fireball (12% of base mana). As an example, Fireball requires 16% base mana to cast, but only consumes 12% of base mana.
Patch 4.0.1(2010-10-12): No longer causes additional damage over time. Base cast time reduced to 2.5 sec (was 3.5 sec). Range increased to 40 yards (was 35 yards).
Patch 3.2.0(2009-08-04): Periodic damage from this spell can no longer trigger Combustion.
Patch 2.0.1(2006-12-05): Rank 12 can now be purchased from trainers at level 62.
Patch 1.4.0(2005-04-19): Pyroblast and Fireball damage over time will now stack together.
Patch 0.7(2004-06-15): Added a small damage over time effect.