Polymorph

This Nether Hero Ability turns one stack of Basic or Special Units into Frogs if any are present.

First it will select the top most Basic or Special Unit Stack by testing the Unit's Nether Resistance. If the Ability has successfully made it through the Unit's Nether Resistance, it will then kill:

2000 + Ability Level x (Random number between 0 and 1,000) of Units

If it did NOT make it through the Unit's Nether Resistance, it will move down to the 2nd highest stack of Basic or Special Units and so on and so forth

Units killed by this Hero Ability are subsequently changed into Frogs that will join your army in the relevant Battle Position
 

Example:

I attack with 5,000 Dark Elf Magicians led by a Level 18 Witch

into

2,000 Archangels [Unit Attribute - Summon]
2,000 Spirit Warriors [Unit Attribute - Summon]
10,000 Knight Templars [Unit Attribute - Special]
10,000 Fanatics [Unit Attribute - Special]
10,000 Archers [Unit Attribute - Basic]

 

Polymorph is tested on the Knight Templars first because they are the top most Special/Basic Unit - The Ability fails to pass Resistance
Polymorph is then tested on the Fanatics because they are the second highest Special/Basic Unit - The Ability fails to pass Resistance
Polymorph is then tested on Archers and because Archers do not have Nether Resistance, the Ability successfully connects

3,770 Archers were killed [2000 + 590 x 3] (590 was the Random Dice Roll between 0 and 1,000)