Chief Engineer

All 3 printings of Chief Engineer

Printing	Rarity	Non-foil	Foil	Cardmarket (EUR)	My collection
Commander 2016 c16 #86· 2016rare· Cardmarket €1.08	rare	$0.86	—No foil printing	€1.08	+ Add, Chief Engineer, Commander 2016 #86
Magic 2015 m15 #47· 2014rare· Cardmarket €1.05 · €2.07 foil	rare	$0.89	$3.33	€1.05€2.07 foil	+ Add, Chief Engineer, Magic 2015 #47
Magic 2015 Promos pm15 #47· 2014Promorare· Cardmarket €1.93 foil	rare	—No non-foil printing	$5.69	€1.93 foil	+ Add, Chief Engineer, Magic 2015 Promos #47

Prices are TCGplayer market prices in USD for each printing and finish, via Scryfall. They are a guide, not an appraisal.

Rulings (7)

1. 2014-07-18

   Multiple instances of convoke on a single spell are redundant.

2. 2024-01-12

   Because convoke isn't an alternative cost, it can be used in conjunction with alternative costs.

3. 2024-01-12

   Tapping an untapped creature that's attacking or blocking to convoke a spell won't cause that creature to stop attacking or blocking.

4. 2024-01-12

   When calculating a spell's total cost, include any alternative costs, additional costs, or anything else that increases or reduces the cost to cast the spell. Convoke applies after the total cost is calculated. Convoke doesn't change a spell's mana cost or mana value.

5. 2024-01-12

   Tapping a multicolored creature using convoke will pay for or one mana of your choice of any of that creature's colors.

6. 2024-01-12

   You can tap any untapped creature you control to convoke a spell, even one you haven't controlled continuously since the beginning of your most recent turn.

7. 2024-01-12

   If a creature you control has a mana ability with in the cost, activating that ability while casting a spell with convoke will result in the creature being tapped before you pay the spell's costs. You won't be able to tap it again for convoke. Similarly, if you sacrifice a creature to activate a mana ability while casting a spell with convoke, that creature won't be on the battlefield when you pay the spell's costs, so you won't be able to tap it for convoke.