Grand Architect
Creature — Vedalken Artificer
Rarity
Rare
Mana Cost
Artist
Steven Belledin
Power / Toughness
1 / 3
Oracle Text
Other blue creatures you control get +1/+1.: Target artifact creature becomes blue until end of turn.
Tap an untapped blue creature you control: Add 
. Spend this mana only to cast artifact spells or activate abilities of artifacts.
Rulings (3)
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Wizards of the CoastGrand Architect's second ability causes the affected artifact creature to lose any other colors it has, but it doesn't cause it to stop being an artifact.
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Wizards of the CoastYou can tap any untapped blue creature you control, including one you haven't controlled continuously since the beginning of your most recent turn, to pay the cost of Grand Architect's mana ability. This includes Grand Architect itself.
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Wizards of the CoastBecause damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to a blue creature you control may become lethal if Grand Architect leaves the battlefield during that turn.