- Takumi was once considered a top tier threat. He comes with the skill Close Counter, which allows him to counterattack even if he's attacked at close range. His Atk and Spd are pretty good, so his strikes will likely hurt. He also comes with the skill Vengeance, which allows him to do more damage based on how much damage he's taken. Since he is colourless, most units can't use the weapon triangle to mitigate damage from him, outside of mages who wield -Raven tomesnote , which have only the standard weapon triangle effect. After the advent of Skill Inheritance, Takumi began to fall out of favour, but he can still be annoying to fight if he's either given Vantage or opts for the standard Brave Bow+ set.
- Hector. He comes with the skill Distant Counter, allowing him to counterattack ranged attackers. His Armads has the Quick Riposte skill built in, which allows him to do follow up attack if he is attacked while his HP is above 80%. His HP, Atk, and Defense are all fantastic, allowing him to take and dish out a lot of physical punishment. With his high HP, he should be able to take a magical strike here or there too. What makes Hector unique among units who can run Distant Counter and Quick Riposte is that his Quick Riposte is built into his weapon, freeing up his B skill. He could use Wings of Mercy to help him traverse the map easily and get the jump on unsuspecting foes. He could also use Vantage, which would let an injured Hector strike first at a certain HP threshold. His HP threshold for his weapon's effect is 80% HP, and Vantage's HP threshold is 75% HP, so if he's not in one threshold, he's in the other, being able to either strike twice, or strike first, both dangerous prospects for his enemies, especially if he's got a Special charged up. His only real weaknesses are his low Res and Spd, and his lack of movement due to being an armoured unit (and the latter can be fixed with Amelia's Armor March). This means that, while having a counter to him is recommended, it isn't particularly difficult to build one.
- Reinhardt. He is one of the most powerful units in the game thanks to his Dire Thunder tome, which strikes twice at the cost of lowering his Speed. His Speed is already low enough for it not to matter (which is almost a boon to him, because of the way stats work), and his Attack is pretty good, especially with a +Atk boon. He is the perfect example of a Glass Cannon, as while his low Speed could spell his demise on the Enemy Phase, he has the potential to destroy almost any unit he comes across on the Player Phase. Being a mounted unit, he has massive range, with three space movement and being able to attack at a distance, letting him seek out foes from across the map with ease. If he's given the right skills and the right teammates, he becomes the absolutely absurd boss unit he was in his home game, ensuring that nothing will stand in his way. Death Blow boosts his Atk by +6 when initiating combat, which works perfectly with his tome. As he is a mounted unit, he benefits from horse buffs like Hone Cavalry and Goad Cavalry, which would further boost his Atk by +6 and +4 respectively. When those skills are combined with Death Blow, that equals to +16 Atk upon initiating combat. On top of that, Reinhardt can use Moonbow combined with the Quickened Pulse seal, which will allow him to fire off Moonbow on his second strike. Anything except the most powerful and highly resistant green units will lose to this combo, making such a unit (examples including Julia and Fae) a necessity if one expects to encounter Reinhardt, such as in the Arena, where many players pack one both offensively and defensively- amongst the units listed here, Reinhart is rated at 4*-5* rarity, meaning that many players can obtain a copy of him, even if he requires a 20,000 investment to get Dire Thunder.
- Bridal Cordelia, an archer variant of the regular Cordelia. She is easily the best archer in the game, with an impressive 35 Atk and 35 Spd. Her natural skillset isn't too bad either, as she has the very rare Rally Atk/Spd which boosts both stats by 3, and her weapon can boost her teammates Def and Res by 2 if they're within two spaces. However, she'd really want weapons like the Brave Bow+ or the Firesweep Bow+, as well as skills like Death Blow or Life and Death to augment her offense. The Brave Bow+ can let her strike twice in succession, potentially four times if she has enough Spd, while the Firesweep Bow+ prevents her and her foes from counterattacking. With her incredible offensive stats, she can proceed to heavily injure her foes, if not outright destroy them. Since she is colourless, only Triangle Adept -Raven tome wielders can mitigate damage from her, but Cordelia can then use Cancel Affinity to negate that advantage.
- Brave Lyn, a mounted archer variant of the regular Lyn. Similar to Bridal Cordelia, she has stellar offensive stats with 33 Atk and 35 Spd. Her natural skillset alone is enough to make her a threat, as her unique Bow has 14 Mt and grants her +3 Spd, and is able to nullify any buffs that a mage has, allowing her to counter -Blade tome users. Her A skill is Swift Sparrow, which grants +4 Atk and Spd upon initiating combat, giving her an incredible player phase presence. Her B skill is Sacae's Blessing, which allows her to nullify Distant Counter on physical melee units like Hector, allowing her to strike them without fear. Her C skill is Atk Smoke, which allows her to debuff any target within 2 spaces of the foe for -7 Atk. As she is a mounted unit, she can take full advantage of cavalry buffs. A single Hone Cavalry buff grants her +6 Atk and Spd, which will help her lay into her foes. She can also use other bows to great effect like the Brave Bow+ or the Firesweep Bow+. With her high movement and her ranged weapon, she can seek out foes from across the map and destroy them, making her attack range quite large. Just like Bridal Cordelia, Brave Lyn is a powerful archer that a team will need an answer to.
- The Black Knight. Like other armoured units, he has great physical bulk and impressive attack. However, he also has an incredible 34 speed on his side as well as three unique skills: Steady Stance, Alondite and Black Luna. The first of those abilities grants him up to +6 defense if attacked, allowing him to do well during the enemy phase. He can tank melee units very well and even bait dagger and bow users due to Alondite's built-in Distant Counter. The last of those skills, Black Luna, is arguably his most valuable asset; when initiated, it cuts the foe's Def/Res by a whopping 80%. This means that he can even decimate tanky blue units when Black Luna activates, and it has a reasonable cooldown charge of 3 that can be made even shorter if he decides to utilize Heavy Blade or the Quickened Pulse seal. His natural skillset also has Wings of Mercy, which allows him to launch surprise attacks at his enemies.
- -Blade tome users. The most popular ones to use are Nino and Tharja, since they come packing the tome themselves and have the stats to make it scarynote . However, the tome is so powerful that basically any mage carrying it can become decent, because of its effect- bonus damage equal to all of the stat bonuses given to that unit is added. The more stat buffs you give to the unit, the stronger they will get. Using supporting characters with Rally or Hone skills to boost the -blade unit's stats and they can hit as hard as nukes. Eirika and Ephraim, with weapons carrying Hone Attack 2, make good partners for this tome for their ability to raise all four stats at once on any unit (Sacred Twin, Hone Speed C, Rally Defence Assist, Fortify Res Seal).
- Refresher units. These are units who can allow another ally to act again through the use of Sing or Dance. Just like in the main series, the ability for a unit to act again is absolutely invaluable, especially when the player has one of the units listed on this page that can defeat many opposing units. At the time of writing, there are only three: Olivia, Ninian, and Azura. Olivia is widely available due to being around for the regular Hero Battle Rotation, has well-balanced stats with good ATK, and also comes with Hone Atk in her natural skill set to enhance her support capabilities. Azura, while the most fragile of the trio, comes with Sapphire Lance+, allowing her to defeat any red unit with ease should she need to personally get down onto the battlefield. Ninian is a dragon, so while that gives her a Falchion weakness, she can inherit the Lightning Breath from Nowi or Adult Tiki, allowing her to counterattack 2-range attackers. Her ATK is the lowest of all the dancers; in return, she has pretty decent defensive stats, with 43 HP, 23 Def, and 27 Res, so she can at least take a few more hits before going down. She also comes with Fortify Dragons, which can help fellow dragon teammates survive by giving a +6 bonus to Def and Res. All three can be given Wings of Mercy to help them immediately reach injured allies and give them a Heroic Second Wind.
- Specialized or themed teams have become popular with the advent of skill inheritance. There are specialized buff skills that work for specific types of units (namely Cavalry, Armour, and Flying units), so these teams usually take advantage of that. Hone and Fortify skills will boost their respective stats (Hone for Atk and Spd, Fortify for Def and Res) by 6 each to any adjacent unit that it applies to, while Goad and Ward skills will boost their respective stats (Goad for Atk and Spd, Ward for Def and Res) by 4 each to any nearby unit within two spaces that it applies to. The regular equivalents to these skills are less effective but more general, boosting only one stat, or only working for adjacent allies. This is why these specialized teams are not only very viable, but potentially very dangerous to face thanks to their benefits. Cavalry units have great movement, armoured units having great stats, and fliers having freedom of movement. Mounted and flier -Blade tome wielders can take full advantage of these buffs, allowing them to devastate their foes. For instance, single Hone boost would effectively grant an extra +18 damage, far greater than any other buffer could provide.
- Full cavalry teams get a special mention since they're the easiest to form, thus making them a popular choice for players to build. A lot of the components that go into making a full cavalry team are either free or available as common units. For instance, Hone Cavalry comes from Gunter who is free, and Fortify Cavalry comes from Jagen who is either 3* or 4*. On top of that, four units have been available for free and they alone are enough to form a team: Xander, Camus, Cecilia, and Brave Lyn. This kind of team is what allows a unit like Reinhardt or a mounted mage with a -Blade tome to reach their full potential, thanks to the offensive buffs that augment their combat performance to greater heights. One thing to note is that their allies will often run Reposition. This way, a unit can strike, and then another cavalry ally can use their high movement to march over to their ally quickly and use Reposition to get them out of danger, allowing them to basically perform hit and run strategies.
- In contrast, full flier and full armour teams are far harder to form. For flier teams, mage fliers are from seasonal banners, and their buff skills are on much harder to find units, as Hone Fliers is locked to the 5* exclusive Hinoka. As for armour teams, the essential skills they need are also on 5* exclusive units, like Distant Counter being on Hector and Armour March being on Amelia. Both of these skills help make up for the weaknesses that armoured units usually have. While full flier and full armour teams can still succeed, they are just a bit more difficult to form than full cavalry teams.
Game Breaker / Fire Emblem Heroes
Given the large roster of characters, there are some that are bound to stand above the rest. Fittingly enough, there are some characters that were overpowered in their home games and they continue to be so here.