Shield Skills are Skills available for unlock with use of Shields in Dragon's Dogma. Shields don't share Skill sets with Magick Shields and its Skills are available to Fighters and Assassins. You can find detailed information on individual Shield Skill on each page linked below.
Dragon's Dogma Shield Skills List
Cymbal Attack
Vocation: 
Rank: 1
Cost: 250
Description: Unleashes a barrage of strikes using the shield.
Cymbal Onslaught
Vocation:
Rank: 4
Cost: 1,300
Description: An advanced form of Cymbal Attack that unleashes an extended onslaught of blows with the shield.
Divine Defense
Vocation:
Rank: 8
Cost: 4,000
Description: An advanced form of Perfect Defense that guards against all attacks at a greatly decrased Stamina cost.
Eminence
Vocation: 
Rank: 5
Cost: 2,200
Description: Renders your jumping attacks more powerful.
Enhanced Response
Vocation: 
Rank: 6
Cost: 3,000
Description: An advanced form of Flight Response that uses blocked enemy strikes to launch the user highter into air and out of harm's way.
Flight Response
Vocation:
Rank: 4
Cost: 1,600
Description: Uses blocked enemy strikes to launch the user into the air and out of harm's way
Launchboard
Vocation:
Rank: 6
Cost: 1,600
Description: An advanced form of Springboard that uses the shield to launch allies to greater heights
Moving Castle
Vocation:
Rank: 2
Cost: 800
Description: A quick forward lunge while guarding with a shield.
Perfect Defense
Vocation:
Rank: 6
Cost: 2,000
Description: Guards against all manner of attacks, no matter the properties of the shield in use.
Sheltered Assault
Vocation:
Rank: 6
Cost: 1,800
Description: An advanced form of Sheltered Spike that appends still more strikes to the onslaught while guarding from all directions but the rear.
Sheltered Spike
Vocation:
Rank: 3
Cost: 800
Description: Unleashes a flurry of stabbing attacks while maintaining the user's guard from all quarters, except the rear.
Shield Drum
Vocation:
Rank: 3
Cost: 600
Description: An advanced form of Shield Summons where the raps carry futher, drawing the ire of most dinstant enemies.
Shield Storm
Vocation:
Rank: 4
Cost: 1,000
Description: An advanced form of Shield Strike that shrinks the user's window of vulnerability with a faster blow that forces the target to drop their guard.
Shield Strike
Vocation:
Rank: 1
Cost: 200
Description: Strikes a blow with the shield that causes little damage but forces the target to drop their guard.
Shield Summons
Vocation:
Rank: Default
Cost: N/A
Raps the shield loudly to attract the attention of nearby foes.
Showdown
Vocation:
Rank: 9
Cost: 6,000
Description: An advanced form of Staredown that greatly boost the user's Strength for a longer period of time.
Springboard
Vocation:
Rank:
Cost: 400
Description: Launches allies into the air using the shield. A supporting technique for tandem moves.
Staredown
Vocation:
Rank: 6
Cost: 5,000
Description: Boosts the user's strength for a time, at the cost of lowered Defenses.
Swift Castle
Vocation:
Rank: 4
Cost: 1,600
Description: An advanced form of Moving Castle that advances even further forward while guarding.
