A ninja is a person that uses a mix of both dexterity and strength to quickly assail an opponent.

Level 1: Swift Slash

Slash at ninja speeds, increasing damage and chance to hit.
MP Cost: 15
120% Base and Random damage.

Level 2: Defense Bonus

Level 3: Dark Aura

Increased damage and a dark attack. If your weapon is already dark, damage is increased even more!
MP Cost: 30

Level 4: Spin Tactics

Use your ninja speed to spin through the enemy 4 times!
MP Cost: 60

Level 5: Dual Katanas

Use your ninja magic to cast out 2 sacred weapons, the Kazan and Kesshou katanas.
MP Cost: 60

Level 6: Summon Ninja Tortoise

Bring havoc to the battle by summoning the truly evil Ninja Tortoise.
MP Cost: 60

Level 7: Ninja Stars

Cast upon thy enemy 4 deadly Ninja projectile stars.
MP Cost: 70
Four hits of 4-25 50% BTH, Wind Ranged

Level 8: Increased Elemental Resistance

Level 9: Sui-Ka Cast

Tap into a mystical portal which uses your enemy's MP to freeze them! Your enemy needs at least 40 MP for this to work.
MP Cost: 80

Level 10: Ninja Death Strike

Cast the ultimate ninja skill. Has a 20% chance of a massive Element X attack. Perfect finishing move!
MP Cost: 150