how to make a passive for clones

[Jimaras5690]

how to make a skill which have chance to spawn a clone which does 30% damage and takes 200% extra from enemy attacks? the chance increased 5% per level abillity can reach untill level 4

 

[Ezekiel12]

If the passive fires on attack you would have to detect the attack and then roll a random number. If the number is in your desired bounds create a dummy unit which casts wand of illusion on the attacker.

Depending on the map detecting an attack can be hard, so you might want to use a Damage Detection System.