Artifact: The Oath, info and card details Find all the info on The Oath, Artifact Upgrade card.
The Oath
| Information | |
| Colour | Black |
| Type | Improvement |
| Cost | 3 mana |
| Effet | You cannot cast Spell or Creep while The Oath is active. If there is an allied black Hero on the Lane, the allies have +4 Attack. |
| Scarcity | Or |
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| All cards | Find all our guides |
