Well i thought i should post these ideas, they are kind of concepts for heros, not fully thought through or anything, but i hope you like them 
Warmonger - Assasination
This larger than usual and muscly Demigod charges into battle with 2 HUGE weapons, a 2 handed sword and an Axe, this causes him to be very slow, but when he hits you, it hurts! He uses a variety of attacks that hit multiple targets at once, and also alot of powerfull single target abilitys.
These are a few abilty ideas i have
Cleave: The Warmonger swipes his sword in the enemys direction. Damages target for X damage and other nearby targets for Y% of damage done.
Vice: The Warmonger swings both weapons at the target, jamming the target between them. Does X damage to target.
Rampage: Charges to the target in a beserker rage. Automaticly moves to target enemy at high speed, and the beserker has increased attack speed for a short time
Bone Crushing Blow: Crushes the target with his axe. X damage and stuns for Y seconds
Un-killable: While Warmonger is under 15% health he goes into a beserker rage, increasing attack speed by X% and damage by Y%
Frenzy: Increases Warmongers Weapon Damage by X and attack speed by Y.
Pretty much warmonger is a high powered demigod, with average armour, but a very low attack speed.
Vile Temptress - Assasin
A Demigod who is half serpant, half woman, but unlike medusa, her beauty is unrivaled, this woman moves into battle, seduces her enemy, then severly damages, and then poisons them leaving them to die.
Abilities
Seduction: The temptress seduces the target, it is then overwhelmed with feelings of love, and is stunned for X amount of time
Venom: The temptress bites that target, doing X damage and poisoning them doing Y Damage over time
Poisoned Dagger: The temptress stabs the target doing X damage and poisoning them doing Y damage over time
(The two abilitys are simmilar, but work diffrently, and can overlap, Venom does a small amount of damage, but a much higher amount of damage over time, poisoned dagger does large damage, then less damage over time, and can be used together to deal a life threatening attack to the target)
Deadly Kiss: This abilities prerequisite is both Poisoned dagger and Venom, it is pretty much a combination of the two, She kisses them, which poisons them, and stabs them at the same time, when you get this ability Venom is changed to deadly kiss, and poisoned dagger is changed to Heart Strike, which does large damage to the target
Throw Dagger: Temptress throws her dagger, doing X damage and Y damage over time (Ranged, but weaker then poisoned dagger)
Love Struck: When a target hits the temptress, there is a X% chance that their damage will be reduced my Y amount
Graceful: Temptresses movement speed is increased by X amount
Pretty much she is a hit and run demigod, who stuns their target, poisons them, and runs, because she has a lower then average amount of health and armour.
The idea for her started with the idea for a demigod, but i didnt really think about the abilities, so sorry it took too long and some of them seem a bit stupid.... but it does make her unique and you have a choice of each ability, or combining them into one.
And it seems i have to go now.... its a shame i dont get to tell you my ideas right now, but i will add more in an hour or so, so keep this thread bumped and i hope you like my idea =D