User blog comment:Mohamed7845/The Upcoming 7*s Michele/Melchio/Sargavel/@comment-70.173.62.230-20150903183316

They each have their different roles in the squad. So, I think that it depends on what your main squad consists of, and what the units are in the squad. Between Exvehl and Melchio... I'd say I'd rather have Exvehl, since it can remove status ailments.