Units & Skills
Units
compare/filter/sort units
Units By Max Scores
compare units scores (for arena and other modes)
FEHdex / Catalog of Heroes
check which heroes you are missing
Skills
compare/filter/sort skills
Skills Ratings
compare skills ratings, restrictions, effects
Events
Hall of Forms
keep track of your progress
Binding Worlds
compare units you can redeem
Misc
Evolution of stats
over the years