Chaos Three enemies have hefty defenses against projectile attacks with reflective shields, so unless you have Piercing MODs on your Relics, try using AOE based attacks such as auras, traps, and nodes on ground lanes.
There is also a unique enemy called an '''Explodinator''' which spawns in certain lanes during certain waves. They are a more powerful version of kobolds which also have the ability to fire rockets everywhere in a medium radius around them. The rockets are very deadly as they could result in a one hit death to a hero. However despite their power, Explodinators are quite tiny, roughly a tad bit smaller than a regular goblin though their presence can be known through rockets firing everywhere from them which are also very visible though the through sparks flaring from the rockets flying and exploding.