>>718223872
There is a tank role, typically filled by the character(s) with the highest AC
There is no healer role because combat healing provides less value than just killing things, this is a facet of D&D and its derivatives as whole regardless of edition.
An optimal party has roles such as buffers and AoE'ers, this is Buff finder after all.
>There is no reason to do it in an infinity engine
There is every reason to do it in infinity engine games, every dungeon has traps and scounting out enemies helps you better plan out your moves
>Mahirofag
Even worse than Jirenbronys, end your life.