This will be a reference guide, to some of the best and most useful Abilities, to Customize onto Weapons and Armours. I'll be listing (acording to me) the best and most usefull Abilities for Weapons and Armours, what Items you need to Customize said Ability, and how to easiest get said Items. For Weapons theres really no point, in trying to come up with an Ability combo, thats better then any of the fully unlocked Celestial Weapons, so keep that in mind when Customizing Weapons. Weapon Abilities: 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 Abilities for the Don Tonberry Trick: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 Armour Abilities: 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