Lucrehulk‘s main body consists of 9 pentagons arranged in a ring formation. There is a smaller circle inside connected to the main body by what appears to be a Gatling Gun Cannon. It has 5 Assassin Turrets, 3 large and 2 small. It also has 2 Machine Gun Turrets as well as 2 Swarm Spawner Turrets. On the central small circle, it has a Destroyer cannon.
Currently does not spawn on the old arras io
Spawns on boss rush on wave 29 in the new arras io
You need 3-5 Hexa Builders to block out bullets. Get some Tri Constructers as well. Now distract the boss using the Booster branch, ideally Shooting star. Now get a Splitter to kill it, and an Acid to slowly melt down its health. You could also get a Paralyzer to freeze the boss. Congrats, you defeated Lucrehulk.