![Chief Engineer (Game Day) [Magic 2015 Promos]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/chief-engineer-game-day-magic-2015-promos.webp)
Description
| Set: | Magic 2015 Promos |
| Type: | Creature — Vedalken Artificer |
| Rarity: | Rare |
| Cost: | {1}{U} |
Artifact spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting an artifact spell pays for {1} or one mana of that creature’s color.)
![Synapse Sliver [Legions]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/synapse-sliver-legions.webp)
![Progenitus [From the Vault: Legends]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/progenitus-from-vault-legends.webp)
![Conqueror's Galleon // Conqueror's Foothold (Buy-A-Box) [Ixalan Treasure Chest]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/conqueror-s-galleon-conqueror-s-foothold-buy-box-ixalan-treasure-chest.webp)
![Mammoth Umbra [Planechase Anthology]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/mammoth-umbra-planechase-anthology.webp)
![Lashwrithe [New Phyrexia]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/lashwrithe-new-phyrexia.webp)
![Silver Knight [Friday Night Magic 2004]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/silver-knight-friday-night-magic-2004.webp)
![Hostility [Lorwyn]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/hostility-lorwyn.webp)
![Vesuva [From the Vault: Realms]](https://www.cardgametoponline.com/wp-content/uploads/2026/07/vesuva-from-vault-realms.webp)