Ability systems.

I'm currently using five systems for abilities, skill being the most used.


Skill
· Abilities have MP cost.
· Damage can be affected either by Power and/or Attack.
· Effects of abilities (slow, duration, for instance) can be affected only by Power.
· Cooldown of abilities variate.
· Normal growth of HP, MP, Bonus HP, Bonus MP, Attack Speed, Armor, Power, Attack, and Spirit.

Characters using Skill system:

- Komachi, the Stygian Boatmaiden.
- Suika, the Drunken Oni.
- Tenshi, the Celestial.
- Patchouli, the Mobile Library.
- Reisen, the Lunatic Bunny.
- Cirno, the Idiotic Fairy.
- Sephiroth, the Son of Genova.
- Eirin, the Nurse.
- Saber, the Servant Saber.


Technique
· Abilities have no MP cost.
· Damage can be affected either by Power and/or Attack.
· Effects of abilities are never modified.
· Cooldown is usually high.
· Have only HP, Bonus HP, Attack Speed, Armor, Power and/or Attack growth. MP is always 1.

Characters using Technique system:

- Cloud, the Ex-SOLDIER.
- Tifa, the Bar Hostess.
- Remilia, the Eternal and Beautiful Vampire.


Gauge
· Abilities have no MP cost, except for the ultimate, which always cost 100 MP.
· Damage can be affected either by Power and/or Attack.
· Effects of abilities are rarely modified, and only by Power.
· Cooldown is usually low.
· EXTRA: Ultimates' cooldown are usually low, but cannot be activated unless you get into a fight.
· Have only HP, Bonus HP, Attack Speed, Armor, Power and/or Attack growth. MP is always 125, and have a negative -10 MP regeneration. Spirit does not affect MP regeneration.
· EXTRA: MP is recovered by doing damage, or by activating certain abilities (for instance, Meiling's Tiger Strength adds 15 to her MP).

Characters using Gauge system:

- Meiling, the Scarlet Gate Keeper.
- Flandre, the Little Sister.


Boost
· Abilities have little MP cost, except for the ultimate, which has no cost.
· EXTRA: During the ultimate, the basic abilities are improved.
· Damage can be affected either by Power and/or Attack.
· Effects of abilities are rarely modified, and only by Power.
· Cooldown of abilities variate.
· Have only HP, Bonus HP, Attack Speed, Armor, Power and/or Attack growth. MP is always 125, and have a constant 3 MP regeneration. Spirit does not affect MP regeneration.


Characters using Boost system:

- Iku, the Dancing Dragon.
- Youmu, the Ghost Gardener.


Blood Heat
· Abilities can have MP cost or can be free.
· EXTRA: Abilities do extra effects depending on the level of HP. Below 70%, a extra effect. Below 40%, two extra effects. Below 25%, three extra effects.
· Damage can be affected either by Power or Attack.
· Effects of abilities are only modified if below certain HP level.
· Cooldown of abilities are usually high.
· Can have normal growth or non-MP growth.

Characters using Blood Heat system:

- Nanaya, the Nightmare Murderer.