When drawing using Grimoire Maps these are the Skill Upgrade Cards you can receive:

  • Ambush
  • Anger
  • Assassinate
  • Bane
  • Battleblow
  • Bless
  • Block
  • Bloodlust
  • Bolt
  • Cloudburst
  • Consecrate
  • Counter
  • Death March
  • Detonate
  • Dodge
  • Earth Totem
  • Elven Salve
  • Fatigue
  • Feral Fever
  • Frostbite
  • Gas Cloud
  • Holy Light
  • Humanity
  • Ice Arrow
  • Incinerate
  • Injured
  • Life Sap
  • Mass Heal
  • Meteor
  • Miasma
  • Picking Off
  • Plague - Unlisted by IGG but confirmed
  • Pyre
  • Rage Boost
  • Ravage
  • Rebirth - Unlisted by IGG but confirmed
  • Reflect
  • Restoration
  • Retaliate
  • Safeguard
  • Sage Advice
  • Soul Swap
  • Sprite Link
  • Stinger
  • Tempest
  • Thor's Rage
  • Toxicity
  • Unholy Pact
  • Voodoo
  • Weakness

Special Gem Alter Essences Edit

It has been confirmed that new essences were put into the game in a recent patch. From drawing with the gem alter, these additional essences are obtainable:

  • Afflict
  • Blaze
  • Flaming
  • Rebirth - Unconfirmed
  • Sacrifice
  • Sneak
  • Soul Snatch - Unconfirmed
  • Stabthrough
  • Warlust

Advice on Skill Upgrading Edit

Any skills not listed here are likely only able to be upgraded using Omni Skill Essences. Due to this feature, if you happen to earn any, it is recommended that you save them for the more powerful skills in the game such as Immunity, Sacrifice, or Rampage. Another alternative would be upgrading unique skills that are only found on a few creatures. Examples of these unique skills include Titania's Chainstrike (Rank 7), Sylvan Enchantress' Bewitching Melody (Rank 1), Tomb Raider's Corpse Manipulation (Rank 1), or Henrietta's Cleanse (Rank 1).

Also See: Rare Upgradable Skill

Before making the final decision, always apply your Essence and then tap on the green new skill preview before you hit the Upgrade button (as shown below) to be sure it is enough of an upgrade to warrant using up your resources.