高效建造 
(Efficient Construction)
結界 ～靈氣
對吉拉波部分煅空匠而言，振翼機不過是建設大型工程時順手造出來的東西而已。
Artist:
Jonas De RoShare:
Text:
每當你施放神器咒語時，派出一個1/1無色，具飛行異能的振翼機衍生神器生物。
Rulings:
- 2/9/2017 Efficient Construction’s triggered ability resolves before the spell that caused it to trigger. The ability will resolve even if that spell is countered.
Legality:
- standard: Not legal
- future: Not legal
- frontier: Legal
- modern: Legal
- legacy: Legal
- pauper: Not legal
- vintage: Legal
- penny: Not legal
- commander: Legal
- 1v1: Legal
- duel: Legal
- brawl: Not legal
- oldschool: Not legal
- historic: Not legal
- pioneer: Legal
- gladiator: Not legal
- premodern: Not legal
- historicbrawl: Not legal
- paupercommander: Not legal
- alchemy: Not legal
- explorer: Not legal
- predh: Not legal
- oathbreaker: Legal
- timeless: Not legal
- standardbrawl: Not legal
