
Deals magic damage to the selected enemy unit. The amount of damage depends on the number and level of creatures killed by it.
Calculation formula:
[None]: damage = X*(10+1*SP)
[Basic]: damage = X*(30+3*SP)
[Advanced]: damage = X*(40+4*SP)
[Expert]: damage = X*(60+6*SP),
where X is the square root of the sum of all creatures killed by the unit, multiplied by the level of the killed creatures,
SP is the hero's SpellPower stat.