When One Door Closes: Brutal Efficiency
Just burn boss down, if you can't get this one you need more DPS.
When One Door Closes: Hiding In Plain Sight
Corruption cure the whirling dervish mob that spawns. May need to hold boss damage until it spawns. Can cure after boss dies if one is alive before opening chest.
When One Door Closes: No Poke
Dodge the aura on ground. Cockatrice form stun will be the worst part but if you control DPS you can keep the boss from going into underbulk beetle form and casting the aura while you're stunned.