First Strike:
Items need to Customize 1x Return Sphere
Bribe:620,000Gil Mandragora's in Mt. Gagazet Cavern to get 24x Return Sphere
Initiative:
Items need to Customize 6x Chocobo Feather
Chocobo Feather is aNormal Steal form Qactuar in the Thunder Plains
Stonestrike:
Items need to Customize 60x Petrify Granade
Bribe: 50,625Gil Basillisk's in Djose Highroad to get 24x Petrify Granade
Deathstrike:
Items need to Customize 60x Farplane Wind
Bribe 555,550Gil Wraith's in Inside Sin or Omega Ruins to get 60x Farplane Wind
Slowstrike:
Items need to Customize 30x Gold Hourglass
Bribe 50,000Gil Nidhogg's in Mt. Gagazet or the Cavern of the Stolen Fayth to get 12x Gold Hourglass

Strenght +10%
Items need to Customize 1x Skill Sphere
Bribe 240,000Gil Zu in Bikanel for 2x Skill Sphere
Strenght +20%
Items need to Customize 4x Supreme Gem
Bribe 325,000Gil Halma in Omega Ruins for 20x Supreme Gem
Magic +10%
Items need to Customize 1x Blk Magic Sphere
Bribe 152,000Gil Black Element in Omega Ruins for 1x Blk Magic Sphere
Magic +20%
Items need to Customize 4x Supreme Gem
Bribe 325,000Gil Halma in Omega Ruins for 20x Supreme Gem

Counterattack:
Items need to Customize 1x Friend Sphere
Bribe 150,000Gil Coeurl in Calm Lands for 3x Friend Sphere
Evade&Counter:
Items need to Customize 1x Teleport Sphere
Bribe 1,900,000Gil Barbatos in Inside Sin for 20x Teleport Sphere
Magic Counter:
Items need to Customize 16x Shinning Gem
Bribe 400,000Gil Puroboros in Omega Ruins for 36x Shinning Gem
Magic Booster:
Items need to Customize 30x Turbo Ether
Bribe 148,000Gil Exoray in Inside Sin for 30x Turbo Ether
Half MP Cost:
Items need to Customize 20x Twin Stars
Bribe 250,000Gil Spirit in Omega Ruins for 10x Twin Stars
One MP Cost:
Items need to Customize 20x Three Stars
Bribe 1,687,500Gil Behemot King in Inside Sin for 14x Three Stars

Overdrive --> AP:
Items need to Customize 10x Door to Tomorrow
Bribe 74,000Gil Mech Leader in Mt. Gagazet for 2x Door to Tomorrow
Double AP:
Items need to Customize 20x Megalixir
Bribe 1,120,000Gil Varuna in Omega Ruins or Inside Sin fo 20x Megalixir
Triple AP:
Items need to Customize 50x Wings to Discovery
Bribe 540,000Gil Malboro in Calm Lands for 4x Wings to Discovery
Double Overdive:
Items need to Customize 30x Underdog's Secret
Normal Drop 1x Underdog's Secret from Original Monster Th'uban in the Monster Arena
Triple Overdrive:
Items need to Customize 30x Winning Formula
Bribe 900,000Gil Sand Worm in Bikanel for 15x Winning Formula

Fire Eater:
Items need to Customize 20x Fire Gem
Bribe 30,000Gil Flame Flan in Calm Lands for 10x Fire Gem
Lightning Eater:
Items need to Customize 20x Lightning Gems
Steal from Imp in Mt. Gagazet or Cavern of the Stolen Fayth for 1-2x Lightning Marble
Water Eater:
Items need to Customize 20x Water Gem
Bribe 75,000Gil Remora in Via Purifico (Underwater) for 20x Water Gem
Ice Eater:
Items need to Customize 20x Ice Gem
Bribe 27,000Gil Ice Flan in Lake Macalania for 9x Ice Gem

Darkproof:
Items need to Customize 10x Smoke Bomb
Bribe 100,000Gil Garuda in Mushroom Rock Road for 99x Smoke Bomb
Silenceproof:
Items need to Customize 10x Silence Granade
Normal Steal from Thorn in Cavern of the Stolen Fayth for 2x Silence Granade
Sleepproof:
Items need to Customize 8x Dream Powder
Bribe 45,000Gil Bandersnatch in Mt. Gagazet for 20x Dream Powder
Stoneproof:
Items need to Customize 20x Petrify Granade
Bribe 50,625Gil Basillisk in Djose Highroad for 24x Petrify Granade
Confuseproof:
Items need to Customize 48x Musk
Rare Steal from Evil Eye in Lake Macalania for 1x Musk

Auto-Protect:
Items need to Customize 70x Light Curtain
Drop from Fafnir Species Conquest in the Monster Arena Light Curtain x20
Auto-Haste:
Items need to Customize 80x Chocobo Wing
Bribe 450,000Gil Machea in Omega Ruins for 60x Chocobo Wing
Auto-Potion:
Items need to Customize 4x Stamina Tablet
Bribe 300,000Gil Defender in Cavern of the Stolen Fayth for 20x Stamina Tablet
Auto-Med:
Items need to Customize 20x Remedy
Bribe 180,000Gil Ochu in Moonflow for 70x Remedy
Auto-Phoenix:
Items need to Customize 20x Mega Phoenix
Bribe 249,975Gil Ghost in Cavern of the Stolen Fayth for 38x Mega Phoenix

Defense +10%:
Items need to Customize 1x Special Sphere
Bribe 1,360,000Gil Adamantoise in Inside Sin or Omega Ruins for 6x Special Sphere
Defense +20%:
Items need to Customize 4x Blessed Gem
Rare Steal from Barbatos in Inside Sin for 1x Blessed Gem
HP +30%:
Items need to Customize 1x Stamina Tonic
Bribe 90,000Gil Iron Giant in Thunder Plains for 1x Stamina Tonic

Great and cool Abilities, but they can be a grind fest to get, and especially Break HP Limit and Ribbon is not a must have on your gear, so its up to you if you think its worth the time/trouble

Pickpocket:
Items need to Customize 30x Amulet
Bribe 270,000Gil Tonberry in Cavern of the Stolen Fayth for 2x Amulet
Master Thief:
Items need to Customize 30x Pendulum
Bribe 1,200,000Gil Master Tonberry in Omega Ruins for 3x Pendulum
Break HP Limit:
Items need to Customize 30x Wings to Discovery
Bribe 540,000Gil Malboro in Calm Lands for 4x Wings to Discovery
Ribbon:
Items need to Customize 99x Dark Matter
Bribe 2,000,000Gil Land Worm in Inside Sin for 2x Dark Matter