Tip: the best troll to defeat night crawler is acid refuge, dealing a whopping 7k damage each stomp (it has to be on the head or torso and sometimes wont work)
Tip :if you have lag in a troll you can stay in the construction area and shoot at the boss with an autoclicker it will take you a few minutes (also only the crazy trollge can use his shadow ability behind the wall so stay a bit backed up)
i recommend this really cool kit: being a troll + bringing every boss (no tech man) to the killbricks (legos) and then make the bosses go on the super red one lol