Fighter

Fighters are okay at surviving in comparison with the other two second tier classes, but are still very weak in terms of abilities and combat strength. Fighters' abilities are useful against grouped (and weak) enemies, and with experience Fighters are helpful with defending allies or weaker units.

Spin Strike
8 MP - Perform a spinning attack that deals +2 DMG to all surrounding enemies.

This may come in handy in early stages of the game, but later on when in squadrons of stronger classes that defeat enemies quickly, this ability tends to become redundant.

Defensive Stance
6 MP - Get +2 DEF for the next 15 seconds.

Underrated by many, this ability can negate almost all attacks on the grass island and has quite good value-for-mana at 6 MP.

Taunt
12 MP - Nearby enemies will target this fighter for the next 10 seconds.

Another underrated ability because people don't know how to use it; pair this with an archer's piercing shots to kite and kill hordes of enemies quickly.

Barracks Buddies (Passive)
Get +3 health at the start of battle for every other Trainee or Fighter on the field.

If you have any complaints, there must be something wrong with you.