Efficient Construction
{3}{U}Enchantment
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Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying.
Official rulings
- Efficient Construction’s triggered ability resolves before the spell that caused it to trigger. The ability will resolve even if that spell is countered. (2017-02-09)
Cards like this
Functionally similar cards by meaning — playable in Efficient Construction’s colours.
