Enemy variations would be cool, there are many enemy species, and each species has multiple variations,and then there are the elite enemies which would be tougher variations of the special variations, for example the basic enemy is a giant spider, the special variation is a venomous spider which will have a poison effect on your clones, and the elite one is an elite venomous spider which has more health, can spit the poison from range (with the same damage as the earlier version) and has more damage for basic attacks and also keeps the traits of the special variation, but every species has a weakness and the higher the rank the more dmg the dmg type does that they are weak to, spiders are weak to fire, against a normal giant spider it does 1.5x its dmg, against venomous and the others 1.75x and elite 2.0x