Abilities - Sworn Bond

Units
- Culture
  - Feudal
  - High
  - Barbarian
  - Industrious
  - Dark
  - Mystic
  - Reaver
  - Primal
  - Oathsworn
  - Architect
  - Nomad
- Tomes
  - Astral
  - Nature
  - Shadow
  - Order
  - Chaos
  - Materium
  - Dragon Dawn
  - Empires & Ashes
  - Primal Fury
  - Eldritch Realms
  - Ways of War
  - Giant Kings
  - Archon Prophecy
  - Thrones of Blood
  - Rise from Ruin
  - Secrets of the Archmages
- Types
  - Fey
  - Animal
  - Infernal Fiend
  - Dragon
  - Demi/Giant
  - Elemental
  - Undead
  - Ethereal
  - Plant
  - Celestial
  - Construct
  - Umbral Demon
  - Accursed Fiend
  - Tome Form
- Classes
  - Scout
  - Skirmisher
  - Fighter
  - Magic Fighter
  - Ranged
  - Polearm
  - Shock
  - Shield
  - Battle Mage
  - Support
  - Mythic
- Other
  - Siegecraft
  - Tower
Tomes
Spells
World Map
- City Tree
- Province Impr.
- Magic Materials
- Ancient Wonders
- Infestations
- Landmarks
- Cosmic Happenings
Heroes
Empire
- Pantheon Tree
- Empire Tree
- Destiny Traits
- Faction Traits
- Artifacts / Secret Spells
Abilities
Builds / Planners
- Faction Builder
- Hero Builder
- Build List

Link to target friendly Hero unit:

Damage sustained by the linked unit is dealt to this unit as well but reduced by 50%.
At the start of each turn, the linked unit gains Strengthened.

Notes:

Cooldown: 2