Chocobo/Mog

Chocobo, along with Mog, can be summoned in FF7. All you need is the choco/mog red materia. Where can you find it? You can find the choco/mog materia when you visit the chocobo ranch. Talk to the chocobos inside the pen and watch them do the chocobo dance. After that, the chocobos would give you the choco/mog materia.

MP cost: 14mp
Attack: Deathblow
Status Change: Magic +10%, MaxHP -02%, MaxMP +02%
Notes:
This summon is a wind-based attack that also inflicts paralysis 10% of the time. Also there's a 1/16 chance that instead of summoning chocobo and mog, you'll summon fat chocobo who will inflict more damage.

Personally, I don't use this summon since even in the mastered stage, it only inflicts less than 1000 damage. Maybe it's also because of my magic stats, but I'd rather go for other summons like Bahamut, Neo-Bahamut and Knight of the Rounds.