---
name: "Efficient Construction"
mana_cost: "{3}{U}"
cmc: 4
type_line: "Enchantment"
colors: ["U"]
color_identity: ["U"]
keywords: []
set: "CMM"
set_name: "Commander Masters"
collector_number: "88"
rarity: "uncommon"
artist: "Jonas De Ro"
oracle_id: "5af48f87-7b94-44de-90e3-91f10ced00d3"
canonical_url: "https://avascry.com/printing/efficient-construction-cmm"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Efficient Construction
- **Mana Cost:** `{3}{U}` (CMC: 4)
- **Type:** Enchantment

## Oracle Text
Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying.

> *ギラプールの一部の空大工にとって、飛行機械は大規模構築作業の副産物にすぎない。*

## Top 4096-Dim Neural Synergies
1. [Sai, Master Thopterist](/printing/sai-master-thopterist-m19.md) — Legendary Creature — Human Artificer
2. [Nimble Thopterist](/printing/nimble-thopterist-dft.md) — Creature — Vedalken Artificer
3. [Thopter Spy Network](/printing/thopter-spy-network-ori.md) — Enchantment
4. [Aviation Pioneer](/printing/aviation-pioneer-j22.md) — Creature — Human Artificer
5. [Experimental Aviator](/printing/experimental-aviator-kld.md) — Creature — Human Artificer
6. [Thopter Foundry](/printing/thopter-foundry-plst.md) — Artifact

## Printing Details
- **Set:** Commander Masters (CMM) #88
- **Rarity:** Uncommon
- **Artist:** Jonas De Ro
- **Total Printings:** 18 across all historical editions

## Format Legalities
Commander: `legal` | Standard: `not_legal` | Modern: `legal` | Pioneer: `legal` | Legacy: `legal` | Vintage: `legal` | Pauper: `not_legal` | Penny: `not_legal`