Slaver New Advisor[Suggestion]

So I was thinking about slave driver Zephyros, that fives 20% at most. Based on that and some other advisors:

NEW ADVISOR AGE I
Master Slaver "Insert name"

Villagers get:
Common
- 30% Hp
+ 2% Move speed
+ 5% Work rate

Uncommon
- 35% Hp
+ 4% Move speed
+ 10% Work rate

Rare
- 40% Hp
+ 6% Move speed
+ 15% Work rate

Epic
- 45% Hp
+ 8% Move speed
+ 20% Work rate

Legendary
- 50% Hp
+ 10% Move speed
+ 25% Work rate

Or it could be a rework for the already existing slave driver, I took the idea from several advisors that gives bonus to an specific good recolection, but I think they are used in specific situations, like gather specific resource mision, also as far as I have played slave driver is not much used...