Dream Summon

[Masamunemaster]

I only know the battle mechanicsof FF7, so that one will be in the most detail.

And when I do things like this, I go all out

Game: FF7
Summon name: Infinity Knight
Attack name: End of Time
Details: A knight drops down from the heavens with a heavenly sword. He then splits his sword(FFVII Advent Children style, but less idiotic), and all of the blades slice at the enemy, then coming together where he grabs it for a final blow.
Damage: Each split sword (6 of them) does about Magic base attack, which is 6*(magic+lvl) in FF7 if I remember right, times about 20. So at level 99, with lets say 100 magic, 23880, easily 9999. So your base, not factoring enemies magic defense, would have to be less than 83 1/3 to do less than 9999 damage. The final attack has a 50% chance for instant kill(bosses and many enemies are immune), and also doing magic base*25 damage. If the enemy happens to be immune, the instant death attack is changed to a double attack, doing the same base*25 damage both times.
Acquired: After you have the green or black chocobo, you can go through the ancient forest. Within the ancient forest is a key. This key will unlock a treasure chest in the gold saucer, containing this materia. It take the same AP and gives the same status as the KOTR materia.

Game: FF8
Summon name: Infinity Knight
Attack name: Sword of the light
Details: The Knight will drop from the heavens, with his sword. He will then fly forward and strike the enemy, leaving the slash mark in him in light, which will then pour out light and envelope the enemy, doing massive damage.
Damage: This summon unboosted at level 99 is just slightly weaker than Eden fully boosted at level 99. Has a short summon tme, but a fair amount of time for boost, about 10-15 more than Quezacotl.
Acquired: After you defeat the Omega Weapon, you will be able to exit out into the garden of the castle and go through a maze, with many new enemies stronger than omega weapon(I had to give this summon a reason). Near the end of the maze, you will find this Gf. You must fight it and win. The battle isnt quite as hard as Omega Weapon.

Game: FF10(im not doing 9 =P)
Aeon's name: Infinity Knight
Special attack: Sword of the ages: Calls upon his sword to slash the enemy, causing armor and power break.
Overdrive: End of Time: Same as FF7, only there is no instant death chance. Has 7 attacks to it.
Magic: Starts with every spell
Acquired: After you finish Belgimine, go back to Requiem Temple and find that she was turned into a fayth. You must defeat the aeon before you get it.
Damage: A lot.

this doesnt say limit break/limit/overdrive on it at all