Pulsing

Power, also translated as "Pulsing" in Kingdom Hearts Birth by Sleep, is a material type available in Kingdom Hearts, Kingdom Hearts II, and Kingdom Hearts Birth by Sleep. Power materials contain the essence of strength, and are colored blue.

Design
Power materials are represented by deep blue jewels with an Elemental material structure.

The name "power" clearly references the "essence of strength" the material contains.

Kingdom Hearts

 * Power Shard: Bouncywild (12%/24%), Powerwild (8%/16%) , White Mushroom (100%) , Bambi (40%/60%)
 * Power Gem: Air Pirate (4%), Battleship (8%/16%), Pirate (4%), White Mushroom (10%/40%) , Bambi (30%)

Kingdom Hearts Final Mix introduced the Power Stone, dropped only by the Sniperwild.

Kingdom Hearts II

 * Power Shard: Creeper Plant (8%), Large Body (12%)
 * Power Stone: Luna Bandit (8%), Silver Rock (6%)
 * Power Gem: Aerial Knocker (8%), Shaman (10%)
 * Power Crystal: Morning Star (12%)

In Kingdom Hearts II Final Mix, a Power Crystal can be found in a chest at the Cavern of Remembrance: Depths.

Kingdom Hearts Birth by Sleep

 * Pulsing Crystal: Bruiser (25%)-(40%), Buckle Bruiser (50%)-(90%), Tank Toppler (50%)-(60%), Wild Bruiser (90%).

Kingdom Hearts
Power materials are used to synthesize the following items:
 * Energy Bangle (2 Power Shard)
 * Power Chain (2 Power Shard)
 * Angel Bangle (3 Power Shard)
 * Golem Chain (3 Power Shard, 1 Power Gem)
 * Gaia Bangle (5 Power Shard, 3 Power Gem)
 * Heartguard (3 Power Shard)
 * Power Up (5 Power Shard, 3 Power Gem)
 * Ultima Weapon (5 Power Gem)

Kingdom Hearts Final Mix
Power materials are used to synthesize the following items:
 * Mega-Potion (1 Power Shard)
 * Power Chain (2 Power Shard)
 * EXP Earring (1 Power Stone)
 * Titan Chain (5 Power Shard, 3 Power Gem, 1 Power Stone)
 * Three Stars (5 Power Gem)
 * Power Boost (5 Power Shard, 3 Power Gem)
 * Fantasista (3 Power Stone)

Kingdom Hearts II
Power materials are used to synthesize the following items:
 * Elixir (1 Power Stone)
 * Megalixir (1 Power Stone)
 * Mega-Potion (1 Power Shard)
 * Mega-Ether (1 Power Shard)
 * AP Boost (3 Power Crystal)
 * Magic Boost (3 Power Crystal)
 * Power Band (1 Power Stone)
 * Buster Band (1 Power Stone)
 * Garnet Ring (1 Power Stone, 1 Power Shard)
 * Diamond Ring (1 Power Stone, 1 Power Shard)
 * Mythril Ring (1 Power Stone)
 * Orichalcum Ring (1 Power Stone)
 * Mage Earring (1 Power Gem)
 * Slayer Earring (1 Power Gem)