Book IV Begins: Peony and More

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Book IV Begins: Peony and More
Banner Focus Book IV Begins Peony and More.jpg
Book IV Begins: Peony and More
Featured Units
Start date2019-12-06
End date2019-12-25
DescriptionNew Heroes, including Mythic Hero Peony: Sweet Dream from Book IV of the Fire Emblem Heroes game and three Heroes from the Fire Emblem: Thracia 776 game, are here! (Notification)

Appearance rates

See Summonable Heroes for a full table of the regular pool of summonable heroes.
RarityAppearance rate
5★ Focus3.00%


Orb color distribution
At least one81.48%78.20%64.70%78.27%
Number of units in a pool
5★ Focus5★4★3★
Specific Hero rates (any rarity)
HeroAppearance rateHero Rate | Orb color
Peony: Sweet Dream0.75%Blue Orb.png
Osian: Scolded Soldier0.75%Green Orb.png
Mareeta: Sword of Stars0.75%Red Orb.png
Eyvel: Mistress of Fiana0.75%Red Orb.png
5★ Hero rates
Appearance rate5★ rate | Orb color
Red2.43%Red Orb.png
Blue1.49%Blue Orb.png
Green1.49%Green Orb.png
Colorless0.59%Colorless Orb.png
  • The orb color distribution table displays the chances for a certain orb color to appear.
    • Individual: The chance for a randomly selected orb to be a certain color.
    • All: The chance for all orbs to be a certain color.
    • At least one: Chance for at least one of this orb color to show up in a summoning session.
    • None: Chance for no orbs of this color to show up in a summoning session.
  • The specific Hero rates table shows the chances for specific Heroes.
    • Appearance rate: Individual Hero appearance rate. This is the chance for a randomly selected orb to contain the Hero. This includes all non-focus rarities of the Hero as well in addition to focus rarities. This rate × 5 is the chance for the Hero to show up at all in one of the 5 orbs in a summoning session.
    • Rate | Orb color: The chance to summon a specific Hero given that their orb color has appeared and is being summoned from. This is dependent on color distribution of units in all the pools. This includes all non-focus rarities of the Hero as well in addition to focus rarities.


The following table documents the results of a simulation where 13,334 simulations are run per focus unit. In each simulation, an AI plays optimally and tries to summon a specific focus unit using the least amount of orbs possible. The method of play is described below:

  • Summon from only from the colored orbs that are the same color as the targeted unit.
  • If no such orb exists in a session, summon from the color that has the smallest chance to summon a 5★ Hero, then exit that session.
HeroAverage orbs used
Peony: Sweet Dream162.9
Osian: Scolded Soldier142.6
Mareeta: Sword of Stars178.7
Eyvel: Mistress of Fiana178.7
For more detailed information, see Summon#Color Distribution.


HeroWeaponAssistSpecialPassive APassive BPassive C
Flower of Joy
Gentle Dream
B Duel Flying 1
B Duel Flying 2
B Duel Flying 3
Aerobatics 1
Aerobatics 2
Aerobatics 3
Fortify Res 1
Fortify Res 2
Fortify Res 3
Fortify Res 4
Iron Sword
Steel Sword
Silver Sword
Mareeta's Sword
New Moon
Atk/Spd Solo 1
Atk/Spd Solo 2
Atk/Spd Solo 3
Close Call 1
Close Call 2
Close Call 3
Rouse Atk/Def 1
Rouse Atk/Def 2
Rouse Atk/Def 3
Iron Sword
Steel Sword
Guard Sword
Guard Sword+
Glowing Ember
Atk/Def Form 1
Atk/Def Form 2
Atk/Def Form 3
Chill Atk 1
Chill Atk 2
Chill Atk 3
Iron Axe
Steel Axe
Silver Axe
Warding Stance 1
Mirror Stance 1
Mirror Stance 2
Mirror Stance 3
Wrath 1
Wrath 2
Wrath 3
Even Atk Wave 1
Even Atk Wave 2
Even Atk Wave 3

Level 40 stats

Peony: Sweet Dream Peony: Sweet Dream34/38/4128/31/3433/36/3912/16/1921/24/28
Mareeta: Sword of Stars Mareeta: Sword of Stars38/41/4432/35/3839/42/4627/31/3420/23/27
Eyvel: Mistress of Fiana Eyvel: Mistress of Fiana38/41/4430/33/3632/35/3835/38/4222/25/29
Osian: Scolded Soldier Osian: Scolded Soldier39/42/4532/35/3833/36/3930/33/3623/27/30

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