Name: Jenova Doom
Game of Origin: FF7
Special Attack: Rapids of time
Basic Description:although jenova was defeated a long time ago in the northern crater, the essence lives on and while the reunion is taking place, a summoner can call upon it.
Attack Description: (attack based on jenovas in game attacks.) jenova dissapears and red and blue, cursed bubbles and waves hit the enemy causing slow or stop. jenova reappears and evapourates the stream with a laser.

hopefull that wasn't too lame.

this one is sort of based of a theory i once had on FF4. in short, zeromus was created because of a being that can appear in a physical form if it can possess enough hate. the hate of zeromus's death was enough to make the monster appear in a physical form. im not sure if its right but i always liked the idea over his hate just turning into a monster for no perticular reason apart from magic. but anyway. no debate on this and i dont think the theory is correct anyway.

Name: The HATE.
Game of Origin: FF4
Special Attack: pain/big bang/cosmic wave.
Basic Description: this summoned creature varies on the strength of the summoners hate. it can appear in many different forms often similar to zeromus.
Attack Description: the attack depends on the strength of the hate.

a weaker form would use pain. it causes fear, negative emotions and disables and sometimes kills enemies.

a normal form would look stronger and use big bang. it does massive damage and weakening status effects as well as fear.

a powerful form that would only appear from a sacrifice from someone as powerful as zemus would appear in the near invincible form he does in FF4 before cecil uses the crystal and can use cosmic wave.

planets and stars alter positions and a much larger scale version of big bang appears. with the targets at the center of the destruction. more powerful than big bang as well as vapouring people, turning them to stone, making people go insane, all of these and more. the universe is put back in its normal position after the destruction.

only true heroes can hope to beat this form

phew. well that was a powerful one.

i might think of more later for FFs that no one has done yet.