Synergies are special abilities that other allied players may activate when you use certain skills. When a nearby player is using a skill with a Synergy option, you will see a prompt at the bottom of the screen letting you know that you can activate the Synergy, by pressing the key or buttons associated with it. (“X” by default on PC/Mac, + on Xbox, + on PS4). You may do so at no cost to yourself, though some Synergies may cause the effects to expire sooner. Generally, only one player may activate a Synergy on a given skill, though there are exceptions. The Undaunted skill line is particularly based on Synergy, as all of its active skills have one associated with them. Some Synergies only appear with certain skill morphs, or change depending on the morph chosen.
The Dragonknight StandardUltimate ability and its morphs provide the Shackle Synergy, which immobilizes all enemies within range and deals Flame Damage.
The Flame Lash ability morph provides the Power Lash Synergy works both on enemies that are set Off Balance through a previous Flame Lash as well as through other means, like blocking a Heavy Attack.
The Dark Talons ability and its morphs grant the Impale Synergy, which deals Magic Damage to trapped enemies.
The Consuming DarknessUltimate ability grants players whose Health is below a certain threshold. The Hidden Refresh Synergy (formerly “Slip Away”) morph, which restores their Health, increases their Movement Speed, and grants them temporary invisibility.
The Soul ShredUltimate ability and its morphs grant the Soul Leech Synergy, which allows players to steal Health from an affected enemy.
The Blood Altar ability and its morphs provide the Blood Funnel Synergy, which allows a player to restore Health.
The Overflowing Altar morph changes it to Blood Feast, which increases the Health restored.
The Trapping Webs ability provides the Spawn Broodlings Synergy, which deals Poison Damage and summons spiders to attack your enemies. Its morphs provide different versions of the Synergy.
The Shadow Silk morph changes it to Black Widows Synergy, whose summons last longer and do more damage.
The Tangling Webs morph changes it to Arachnophobia Synergy, which also causes fear to your enemies.
The Inner Fire ability and its morphs provide the Radiate Synergy, which deals Magic Damage to your targets.
The Inner Rage morph, increases the chance of a Synergy occurring.
The Bone Shield ability provides the Bone Wall Synergy, which grants players a Shield which absorbs all incoming damage up to 60% of their Maximum Health.
The Bone Surge morph changes this to Spinal Surge Synergy, which additionally increases their healing received.
The Necrotic Orb ability provides the Combustion Synergy, which causes the orb to explode and deal Magic Damage and restore the player’s Magicka or Stamina, whichever source has the highest maximum ammount.
The Energy Orb morph changes it to Healing Combustion Synergy, which causes the activating player to also be healed.
The Howl of Despair morph of Piercing Howl grants the Feeding Frenzy Synergy, which increases the Attack Damage of your allies.