Heroes


GROWTH

Heroes

Heroes are the heart of combat in EXTOCIUM. Find out what kinds of heroes there are and how they differ.

Tap any hero portrait to open that hero’s profile page.

Guide reviewed · October 22, 2026

  1. Three kinds of heroes
  2. The 7 basic heroes
  3. The 4 succession heroes
  4. Attributes and Elemental Bonus Damage

Three kinds of heroes

There are three kinds of heroes. Every hero is one of the 7 basic heroes or one of the 4 succession heroes.

Trial HeroNFT HeroSuccession Hero
How you get itFree when you start. You choose it in the Land of Beginnings.Summon it, or buy one in the Market.Use Succession on an NFT basic hero you own, at the Ashurbanipal Library (Magic Shop, 2nd floor).
HeroesOne of the 7 basic heroesOne of the 7 basic heroesIndra, Nanna, Lakshmi or Asura
Skills2, you choose them2, chosen at randomThe hero’s 2 skills + 1 Succession Skill
Base stats (total)1415–21, at randomStays the same
NFTNo. It stays with your account.YesYes

Trial Hero

  • In the Land of Beginnings, talk to the hero you want and choose 2 skills.
  • If you leave through the portal without choosing, the hero and skills are picked at random.
  • A Trial Hero cannot fill or use bottles.
  • You can move your Trial Hero’s growth to an NFT Hero once per account.

Trial Heroes and Rookie Lock → · Summon an NFT Hero →

The 7 basic heroes

The 7 basic heroes of EXTOCIUM in the magic shop
The 7 basic heroes.

Tap a hero to open their profile page with their story and skills.

A summon gives one of these 7 heroes: Aristo and Elena 15% each, the others 14% each. See summon chances.

The 4 succession heroes

The 4 succession heroes of EXTOCIUM in the magic shop
The 4 succession heroes.

Tap a hero to open their profile page.

How to get a succession hero

  1. In Rotten Hill, go into the Magic Shop and take the portal to the 2nd floor, the Ashurbanipal Library.
  2. Talk to Gatekeeper Seheiah and use Succession on an NFT basic hero you own.

The hero turns into one of the 4 succession heroes at random (25% each). You cannot choose which one. See Rotten Hill for the map.

You needAmount
Hero levelLv.45 or higher
Base stats (total)17 or higher
primordial Horn2
Ancient arena seal10
Gold36,000,000
  • Each hero can use Succession only once, and it cannot be undone.
  • The hero keeps its 2 skills and its base stats.
  • It gets a Succession Skill, picked at random from the new hero’s 5 succession skills.
  • It gets 4 skill rune slots. Basic heroes have none.
  • The old look stays as a costume.
  • Rented heroes and Trial Heroes cannot use Succession.

Full details, skill runes and Elemental Gems: Succession, skill runes and gems →

Attributes and Elemental Bonus Damage

Every hero has an attribute. When you attack an attribute you are strong against, you deal 12% more damage (Elemental Bonus Damage).

AttributeHeroesStrong against (+12%)Weak against
DarknessAruru, AsuraStone, FireLight, Force
LightIshtar, LakshmiDarkness, ForceWater, Leaf
FireIskandar, IndraLeaf, StoneDarkness, Water
WaterTiamat, NannaFire, LightStone, Leaf
StoneAristoWater, LeafDarkness, Fire
LeafTammuzLight, WaterFire, Stone
ForceElenaDarknessLight

“Weak against” means those attributes deal 12% more damage to you.

Skills and base stats

Skills

Each hero has its own list of 7 skills. A hero uses 2 of them: you choose them for a Trial Hero, and they are picked at random for an NFT Hero. A succession hero also gets 1 Succession Skill.

Base stats

Heroes have six base stats: STR, DEX, INT, CON, WIS and CHA. Their total is 15–21 for a summoned hero and 14 for a Trial Hero. You get more stat points as your hero levels up. See Hero level and stats for what each stat does.

StatMainly raises
STRPhys. DMG
DEXCrit DMG, Crit % and Move SPD
INTMag. DMG
CONHP
WISMP
CHACDR (cooldown reduction)

Change your hero

  1. Open the Hero List.
  2. Tap Equip on the hero you want to use.
  • You cannot change heroes during combat.
  • There is no limit to how many heroes you can own.
  • Each hero has its own level and skills.

Want to try a hero first? Rent a hero →

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