Shadow Flare

Shadow Flare (シャドウフレア, Shadou Furea), also known as Dark Flare, is a spell usually associated with Blue Magic. It is essentially an "evil" version of Flare, often of the dark element.

Final Fantasy III
Shadowflare is a Geomancer ability used randomly while in caves and dungeons. It is very powerful and hits a single enemy.

Final Fantasy V
Shadow Flare can be used by mixing two Dark Matters together. Its base power is 241 and it sets Sap.

Dark Flare is a similar spell usable by the Necromancer class, as a Dark Art. It costs 52 MP, its base power is 200, and it cuts through the enemy's Magic Defense. Dark Flare is learned from Exdeath's Soul and Tonberry.

Final Fantasy VII
Shadow Flare is an Enemy Skill learned from Dragon Zombie, and the bosses Safer∙Sephiroth, Ruby Weapon, and Ultimate Weapon. It deals massive non-elemental damage to one enemy and costs 100 MP to cast. Shadow Flare's spell power is equal to 7.8125x the user's Magic stat.

Crisis Core -Final Fantasy VII-
Genesis Avatar can cast Shadow Flare.

Final Fantasy VIII
Dark Flare is the version of Mega Flare cast by the boss Tiamat. It takes some turns to charge, but deals great damage to the party. Raising the characters' Fire/Ice/Lightning resistance can allow the party to fully absorb the attack, making the battle a sure win as Tiamat doesn't have any other attacks besides Dark Flare. Junctioning Ultima or Flare to a characters' Elem-Def is an easy way to raise resistance against all three elements.

Final Fantasy Tactics Advance

 * Main article: LV? S-Flare

LV? S-Flare is a Blue magic spell that can be learned from Vampires. It damages all units, enemies and allies alike, with the same last digit level as the caster with a dark elemental attack.

Final Fantasy Tactics A2: Grimoire of the Rift
Shadowflare is part of the Keeper's Turning skillset and is the only Turning ability exclusive to him.

Dissidia Final Fantasy
Shadow Flare is one of Sephiroth's initial ground Brave attacks where he summons four orbs of darkness that close in on the target. He can learn to cast it in the air at level 28.