Thran WeaponryHow it works & interactions with other cards

Understanding the Echo Cost

Thran Weaponry features the Echo keyword, which serves as a one-time maintenance fee. If the artifact entered the battlefield under your control since the beginning of your last upkeep, you must pay {4} or sacrifice it during your current upkeep. This means you usually pay for the card twice: once to cast it and once to keep it around for your next turn.

The Power of Persistent Tapping

The core ability allows you to pay {2} and tap Thran Weaponry to give all creatures +2/+2. Uniquely, you can choose not to untap it during your untap step. As long as it remains tapped on the battlefield, the +2/+2 bonus persists. If it leaves the battlefield or becomes untapped, the effect ends immediately. Note that this bonus applies to all creatures, including those controlled by your opponents.

Resolution and Timing

When you activate the ability, the +2/+2 effect is tied to the tapped status of Thran Weaponry rather than a set duration like 'until end of turn.' If Thran Weaponry is destroyed in response to the activation, the ability resolves, but the bonus will never apply because the artifact is no longer on the battlefield to 'remain tapped.' Similarly, if it is untapped by another effect, the bonus vanishes instantly.

Strategic Considerations

Because the ability provides a global buff, you should ideally use it when you have more creatures than your opponents or when the +2/+2 allows your creatures to survive combat damage that would otherwise be lethal. Since you can choose not to untap it, you can lock in this bonus for multiple rounds, but remember you won't be able to use the artifact for other costs while it stays tapped.

Interaction examples

Boosting Your Golems

Solemn Simulacrum

You have Solemn Simulacrum on the battlefield. You pay {2} and tap Thran Weaponry. Solemn Simulacrum immediately becomes a 4/4 creature. During your next untap step, you choose not to untap Thran Weaponry. The Simulacrum remains a 4/4, allowing it to attack or block with increased efficiency until Thran Weaponry is untapped or destroyed.

Managing Mana for Echo

Commander's Sphere

You cast Thran Weaponry on Turn 4. On Turn 5, during your upkeep, the Echo trigger goes onto the stack. You tap Commander's Sphere for mana to help pay the {4} Echo cost. Once paid, Thran Weaponry remains on the battlefield. You may then pay {2} and tap it to buff your creatures, knowing the Echo cost is settled for the rest of the game.