When a hero that belongs to a particular family is placed on a team with another hero of the same family they each gain a small bonus. The bonus is different for each family and increases with each additional family member.
Image thanks to Razor at EnPHero:
Lagoon Family
The Lagoon Family has an Attack Bonus of 3-5% per hero.
| 3* Heroes | 4* Heroes | 5* Heroes |
|---|---|---|
| Gato (Ice) | Agwe (Ice) | Mok-Arr (Dark) |
| Gill-Ra (Dark) | Gobbler (Nature) | Misandra (Nature) |
| Wilbur (Fire) | Tarlak (Nature) |
Sakura Family
The Sakura Family has a Mana Generation Bonus 2-5% per hero.
| 3* Heroes | 4* Heroes | 5* Heroes |
|---|---|---|
| Chochin
(Dark) |
Ameonna
(Dark) |
Inari
(Holy) |
| Namahage
(Fire) |
Danzaburo
(Holy) |
Kageburado
(Dark) |
| Sumitomo
(Fire) |
Mitsuko
(Fire) |
Atlantis Family
The Atlantis Family has a Defense Bonus of 5% per hero.
| 3* Heroes | 4* Heroes | 5* Heroes |
|---|---|---|
| Melia (Holy) | Gadeirus (Nature) | Ariel (Ice) |
| Mnesseus (Nature) | Proteus (Dark) | Atomos (Nature) |
| Triton (Ice) | Poseidon (Holy) |
Avalon Family
The Avalon Family has a Healing Bonus of 2-4% per hero, and Critical Strike Bonus of 5 % per hero.
| 3* Heroes | 4* Heroes | 5* Heroes |
|---|---|---|
| Bauchan (Fire) | Sir Lancelot (Fire) | Black Knight (Fire) |
| Merlin (Dark) | Guinevere (Holy) | |
| Lady of the Lake (Nature) | ||
| Morgan Le Fay (Nature) | ||
| King Arthur (Ice) |