hiya mate

-imperial: has the same power whith the normall units but  to buy imperial units you spent some saphires and some recourse

to buy a normall units you spent ONLY recources but no saphires,you just have to spent more recources than the imperials but the reason you spent less recources to buy an imperial is cause you spent and some saphires at the same time

-eldrich:is a category of units you win,you CAN NOT make ,buy or build you just win them from the tournament and battleground quest anyway you can just win them.this units is 

1. stronger than than normall units
   
2. consume less food than normall units
3. move faster than the normall units

so eldrich dragon is better than normall dragons

eldrich knight is better than normall knight etc

-dark units:dark units again is better than normall units they eat less food and they are stronger than the normall units BUT their speed is the same whith the normall units so eldrich units instead of stronger is faster than the normall units somethink dark units dont have.

so the conclusion:

1. imperial is same whith normall units about the abilities just diferrent way to buy them,
   
2. dark units is stronger than normall units eat less but dont move faster something eldrich can do so eldrich is the faster units
   

between eldrich and dark units you probably ask who is stronger,eldrich is faster than dark units their power is almost equal ussualy eldrich have better balance but keep this the dark dragon is better than eldrich dragon all other kind of dark and eldrich units is almost same if you check their statistics.

how you can find dark units you probably ask

dark units can make only leagues whith beacons,thats the role of beacons to make dark units.

Beacons is some buildings that capture leagues and they need protect them once there is a war whith beacons,let me tell you that it is a silly war once many leagues sometimes lose more than take on the try to capture beacons only coiner leagues dominate :p forget it all this is another story if you need somethink else to explain or dont understand let me know

Lord Sison

nice answer provided

thanks for ur help, sometimes it has an incalculated value

nps juglar :)reaper completed my answer once i did nt talk him about legendaries

i will  add it here so he can read

legendaries:it is a category of units you can take only if you spent saphires.

This units has a characteristic they have maximum power and minimum power.

To find out how you can reach the maximum power of your legandary you need to open the special bonus box as you see in my screenshoot whith the green arrow ,

this box will show you which units you need to sent toghether whith your legendaries to take the maximum bonus,so this units in the special bonus box is the units you need to sent toghther whith you legendary if you want to reach the maximum power of your legendary 

http://prntscr.com/crrblm

great answer Sison

I would try not to use Eldrich, Dark or Imperial units in bg but use regular units only if you can

yep jezebel of course not for bgs this categories,just normall unitsl it is somethink we could add here once he is young player,good thought :)

sison said:

hiya mate

-imperial: has the same power whith the normall units but  to buy imperial units you spent some saphires and some recourse

to buy a normall units you spent ONLY recources but no saphires,you just have to spent more recources than the imperials but the reason you spent less recources to buy an imperial is cause you spent and some saphires at the same time

-eldrich:is a category of units you win,you CAN NOT make ,buy or build you just win them from the tournament and battleground quest anyway you can just win them.this units is 

1. stronger than than normall units
   
2. consume less food than normall units
3. move faster than the normall units

so eldrich dragon is better than normall dragons

eldrich knight is better than normall knight etc

-dark units:dark units again is better than normall units they eat less food and they are stronger than the normall units BUT their speed is the same whith the normall units so eldrich units instead of stronger is faster than the normall units somethink dark units dont have.

---

so the conclusion:

1. imperial is same whith normall units about the abilities just diferrent way to buy them,
   
2. dark units is stronger than normall units eat less but dont move faster something eldrich can do so eldrich is the faster units
   

between eldrich and dark units you probably ask who is stronger,eldrich is faster than dark units their power is almost equal ussualy eldrich have better balance but keep this the dark dragon is better than eldrich dragon all other kind of dark and eldrich units is almost same if you check their statistics.

how you can find dark units you probably ask

dark units can make only leagues whith beacons,thats the role of beacons to make dark units.

Beacons is some buildings that capture leagues and they need protect them once there is a war whith beacons,let me tell you that it is a silly war once many leagues sometimes lose more than take on the try to capture beacons only coiner leagues dominate :p forget it all this is another story if you need somethink else to explain or dont understand let me know

A really good answer, thank you, Sison!