This could be pretty good for single player maps...
The 7 global power could be like this:
Attack
- +1% UNIT AND HERO DAMAGE
- +1% UNIT AND HERO ABILITY DAMAGE
Defense
- +1% UNIT AND HERO HEALTH
- +1% UNIT AND HERO HEALTH GENERATION
Range
- +1% UNIT, HERO, BUILDING, MECHANICAL SIEGE UNIT AND NAVAL UNIT RANGE
- +1% UNIT, HERO, BUILDING, MECHANICAL SIEGE UNIT AND NAVAL UNIT VISION RANGE
Recharge
- +1% UNIT, HERO AND POWER POINT POWERS COOLDOWN REDUCTION
Training
- +1% REDUCED UNIT AND HERO TRAINING COST
- +1% UNIT AND HERO EXPERIENCE GAIN
Logistics
- +1% REDUCED BUILDING, MECHANICAL SIEGE UNIT AND NAVAL UNIT COST
- +1% BUILDING, MECHANICAL SIEGE UNIT AND NAVAL UNIT DAMAGE
- +1% BUILDING, MECHANICAL SIEGE UNIT AND NAVAL UNIT HEALTH
Economy
- +1% INCOME
- +1% MAX COMMAND POINTS
If there is no way to buy power point powers multiple times, then it should be kinda like this (If there is 100 power points to spend after all the other power point powers are bought):
Attack
- +20% UNIT AND HERO DAMAGE
- +20% UNIT AND HERO ABILITY DAMAGE
(Cost 20 Power points)
Defense
- +20% UNIT AND HERO HEALTH
- +50% UNIT AND HERO HEALTH GENERATION
(Cost 20 Power points)
Range
- +20% UNIT, HERO, BUILDING, MECHANICAL SIEGE UNIT AND NAVAL UNIT RANGE
- +20% UNIT, HERO, BUILDING, MECHANICAL SIEGE UNIT AND NAVAL UNIT VISION RANGE
(Cost 10 Power points)
Recharge
- +20% UNIT, HERO AND POWER POINT POWERS COOLDOWN REDUCTION
(Cost 10 Power points)
Training
- +20% REDUCED UNIT AND HERO TRAINING COST
- +100% UNIT AND HERO EXPERIENCE GAIN
(Cost 10 Power points)
Logistics
- +20% REDUCED BUILDING, MECHANICAL SIEGE UNIT AND NAVAL UNIT COST
- +20% BUILDING, MECHANICAL SIEGE UNIT AND NAVAL UNIT DAMAGE
- +20% BUILDING, MECHANICAL SIEGE UNIT AND NAVAL UNIT HEALTH
(Cost 15 Power points)
Economy
- +20% INCOME
- +1000 MAX COMMAND POINTS
(Cost 15 Power points)