Niflheim
This antagonists famously threatened not to kill the party but to knock them all down.
Garland.
-While often serving as a means of transportation; these creatures sometimes appear as summons.
Chocobos
The villain Sephiroth is capable of this mind-blowing attack in which a meteor is sent toward a celestial body.
Supernova
This Cetra is the mother of Aerith.
Ifalna
Often referred to as simply 'the Empire' a floral-themed resistance movement opposses the full name of this Empire.
The Palamecia / Maetus Empire.
This boss, fought three times, merges with Caccoon despite planning to destroy it.
Barthandelus.
Appearing as a summoning ally in a mainline game, a trials boss in an an online mainline game, and in a movie prequel to a mainline game: the orb to obtain/use this summon is located on an island reachable only via Golden Chocobo.
Knights of the Round
Blue Magic must be a challenge to master because it often involves learning this discomforting attack typically used by a Marlboro.
Bad Breath
This is the alternate name of Cecil's brother Theodore.
Golbez
The Nation of Dalmasca (the original and not the one featured in FFXIV) is caught inbetween two warring Empires. This one begins with an R. DD: Name the other.
Rozarrian / Archadia.
This antagonists is killed prior to the end of the game in which they feature. Rather than accepting their demise, they conquer Hell in order to reappear as the game's final boss.
Emperor Mateus.
This summon from Final Fantasy 10 has two abilities called Pain and Oblivion.
Animal
A female appearing void champion/monarch is notable for her use of this attack in every mainline title that she appears in.
Particle Beam.
In the Scions of the 7th Dawn; two white-haired siblings serve in various capacities along the various expansions. The female is named Alisae, as opposed to the man, who is named this.
Alphaenod
This it has no relation to the knight Garland, this Empire, born without the ability to use magic, is notorious for having conquered at least 4 Nations including Ala Migho.
The Garlean Empire.
This sphrical boss, located in the chocobo's air garden, has unique programming allowing it to know if an attack would be ineffective against the player and, as a result, will not use it.
Ozma.
This summon appears in many games but in one mainline title she walks the earth as a female named Gentiana.
Shiva
Used by Ultimecia exclusively, this attack does NOT, in fact, kill your girlfriend. Instead it deals 9999 damage to any Guardian Force summoned.
Destroy GF.
This judge the brotherr of Basche, is named Noah. This other name is also attributed to him. DD: Name and title.
Gabranthe / Judge Magister Gabranthe.
This Empire, ruled by Emperor Mateus in Final Fantasy 2 conquered supposedly 33 Kingdoms, however the story only mentions three. Name one.
Fynn / Deist / Kashuan
In Final Fantasy 5: This warlock sacrificed his immmortality for the power to control the void, prompting a particular evil tree to do attempt the same.
Eno
In Final Fantasy 4: Rydia can only summon a chocobo as a child, however in the Nintendo DS version she can also summon this unique entity.
Whyt.
In Final Fantasy 12, flanked by two Treants, used a cinematic attack called sporefall that will cause random status ailments. This is the name of that boss.
The Elder Worm.
Some of the dearest family will you have is yourself. This antagonist's both post-and-pre-humous hate merged with the four elements of the world to be reborn with this name.
Chaos.