Example:

Each troop can be trained with one of say two or three perks.


Barb:

Increase speed
Increase DPS
Increase Health

Archer:

Increase range
Increase DPs
Increase health

Goblin:

Increase dps versus resources another 1.5x.
Increase Health

Wall breaker

Invisibility
Not effected by Spring traps

Giants

Increase speed
Increase DPS
Increase DPs versus walls 2.0X

Wiz

Increased HP
Increased range

Balloons

Increased speed
Targets air defenses(including archer towers and wiz towers before other defenses)

Healer

Increase HPS
Can heal air troops


Dragon:

Increase DPs
Increase range
Increase speed

Pekka

Increase speed
Increase attack Speed same DPs
Increase damage to walls 1.3X

Minion

Increase dp
Increase hp
Invisible to air bombs

Hogs:

Increase DPS
Preferential defensive target
Invisible to spring traps

Valk:

Increase HP
Increase attack speed(same DPs)
Invisible to spring traps

Golem:

Increase speed
Armor to increase HP
Damage to walls 2.0x

Witch:

Increase HP
Increase skeleton DPs
Increase range

Lava:

Increase DPs
Increase HP with armor under belly
1.3X less damage by air mines


They would be paid for with DE.

Upgraded with elixer



Not talking game changing but enough for stategy.

They could also take up extra troop spaces to even things out but still add strategy.