Etrian Odyssey Nexus (Revisited) - Shellbeast (HEROIC) 

Now with a new party member in Olivia. With this party you get three ways to nullify a boss' turn along with being able to ignore elemental attacks though the Protector. This is useful since some attacks just aren't survivable without just denying them from happening. Since Charged Shot and Helm Splitter are so TP heavy an Amrita and Hamao are used to be able to finish the fight without running out of TP.