Its just that some are easier to make use out of than others. Lower placements on the tier list dont make a unit bad though.
Aether Raids Tier List Fire Emblem Heroes Wiki Gamepress
Fire emblem heroes wiki arena tier list. This is a tier list of the strongest heroes currently available in the game fire emblem heroes feh. Report errors on the talk page. This list is publicly available within the mass duel simulator. These heroes suffer from more prominent weaknesses demand greater investment and may be comparatively inferior to units in higher tiers. All units in the game have potential. This tier list is automatically generated.
A bonus score of 30 is assumed to indicate a player base that comfortably stays in t195 while actually building units for combat rather than simply cheesing the arena system for maximum points. Use the information available here to build the best team possible. Units are simulated against a curated list of enemies that appear consistently at the 714 724 score range. Scoring factors common to all heroes such as rarity and level are not considered. Heroes that have the potential to score higher in arena are rated higher. Important this tier list factors in full use of skill inheritance and merge allies when rating heroes and is targeted specifically at arena play.
For fire emblem heroes on the android a gamefaqs message board topic titled feh arena scoring tier list. The tier list takes great consideration toward potential and ease of use from the start with this sites list focusing on arena viability. Tier 5 units have passable match ups against most units but tend to struggle to compete against a selection of heroes. These heroes are not definitively weak but are less consistent in most team compositions.