The Fifteenth Doctor 
Legendary Creature — Time Lord Doctor
$35.57 #15753 0.29 2.7 years
Whenever The Fifteenth Doctor enters or attacks, mill three cards. You may put an artifact card with mana value 2 or 3 from among them into your hand.
The first nonartifact spell you cast each turn has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for 
.)
.)Click a line or tag to filter
Cards similar to The Fifteenth Doctor expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Inspiring Statuary83%
$0.30↓#974↑0.349.6 years↑
"Nonartifact spells you cast have improvise."
Ironheart, Clever Champion75%
$0.44↓#11205↑0.00↓0.2 years↓
"Noncreature spells you cast have improvise."
Archway of Innovation74%
$1.47↓#920↑0.15↓2.2 years
", 
: The next spell you cast this turn has improvise."
, : The next spell you cast this turn has improvise."
Sludge Titan73%
$1.89↓#155120.302.5 years
"Whenever this creature enters or attacks, mill five cards. You may put a creature card and/or a land card from among them into your hand."
Tetzin, Gnome Champion // The Golden-Gear Colossus72%
$0.30↓#150880.352.8 years
"Whenever this card or another double-faced artifact you control enters, mill three cards. You may put an artifact card from among them into your hand."
Tomakul Scrapsmith71%
$0.08↓#25869↓0.293.8 years↑
"When this creature enters, mill three cards. You may put an artifact card from among the cards milled this way into your hand. If you don't, put a +1/+1 counter on this creature."