Skills (non-XP): 
Warrior = Most of these skills are passive in that they will occur randomly during battle.  By using the skills many times you can make them do more damage or last longer.

WindChop (level 4) = Do extra damage.  Passive.

Whirlwind (level 14) = Damage all enemies within a 2 step radius.  Passive.

Enticement (level 22) = Entice enemies from surrounding area to come to your location.

Quadrachop (level 37) = Hit the enemy with 4 consecutive attacks.  Passive.

FireBlast (level 44) = Hit enemies from afar with a powerful blast.

FlyingChop (level 52) = Do large damage to nearby unit(s).

HexChop (level 66) = Hit the enemy with 6 consecutive attacks.  Passive.

ChainChop (level 73) = Hit the enemy 6 times in a row. 

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Mage = These skills are never passive.  By using the skills many times you can make them do more damage or last longer.

 

WindBeads (level 1) = Do minor damage to multiple units.

Fireball (level 13) = Do damage to a single unit.

Sneak (level 22) = Monsters will not detect you unless you attack them.

Tornado (level 37) = Damage all surrounding enemies.

Lightning (level 43) = Damage multiple units.
DamageHalved (level 49) = Half of your damage in battle transferred to your summoned eudemons.

SoulSeeker (level 55) = Take MP from dead monsters.

Invisibility (level 66) = Become completely invisible.

Thunder (level 73) = Severe damage.

Damage Transfer (level 79) = Transfer all damage from you to your summoned eudemons.

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Where u can get all the skills.??

Cronus = WindChop, Whirlwind, WindBeads, Fireball
ElvenCity = Enticement, Sneak

Gobi Desert = Quadruchop, FireBlast, Lightning, DamageHalved

Dark Marsh = HexChop, Thunder

Icyland/Island = Damage Transfer

Joans in Market = FlyingChop

Quests = FlyingChop, ChainChop, Tornado, Soul Seeker, Invisibility