Artifact: Steam Cannon, info and map details Find all the info on Steam Cannon, Artifact Upgrade map.
Steam Cannon
| Information | |
| Colour | Black |
| Type | Improvement |
| Cost | 7 mana |
| Effet | active Deals 4 piercing damage to a unit in any lane. - Cooldown: 1 turn |
| Scarcity | Or |
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| All cards | Find all our guides |
