Master Transmuter 
Artifact Creature — Human Artificer
$4.74 #2430 0.62 17.6 years
, 
, Return an artifact you control to its owner's hand: You may put an artifact card from your hand onto the battlefield.Click a line or tag to filter
Cards similar to Master Transmuter 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.
Esperzoa86%
$0.19↓#21709↓0.05↓17.6 years
"At the beginning of your upkeep, return an artifact you control to its owner's hand."
Salvage Scuttler81%
$0.04↓#24062↓0.29↓9.6 years↓
"Whenever this creature attacks, return an artifact you control to its owner's hand."
Drafna, Founder of Lat-Nam80%
$0.39↓#6612↓0.07↓3.8 years↓
"
: Return target artifact you control to its owner's hand."
: Return target artifact you control to its owner's hand."
Copper Gnomes78%
$2.29↓#20007↓0.35↓27.9 years↑
"
, Sacrifice this creature: You may put an artifact card from your hand onto the battlefield."
, Sacrifice this creature: You may put an artifact card from your hand onto the battlefield."
Ingenuity Engine74%
$0.28↓#9439↓0.73↑5.8 years↓
", , Sacrifice an artifact: Return target artifact you control to its owner's hand."
, , Sacrifice an artifact: Return target artifact you control to its owner's hand."
Jhoira, Ageless Innovator74%
$0.28↓#10178↓0.22↓4.0 years↓
": Put two ingenuity counters on this card, then you may put an artifact card with mana value X or less from your hand onto the battlefield, where X is the number of ingenuity counters on this card."
: Put two ingenuity counters on this card, then you may put an artifact card with mana value X or less from your hand onto the battlefield, where X is the number of ingenuity counters on this card."
Retract73%
$5.20↑#13024↓0.06↓22.6 years↑
"Return all artifacts you control to their owner's hand."
Arms Race71%
$0.10↓#22252↓0.11↓3.8 years↓
"
: You may put an artifact card from your hand onto the battlefield. That artifact gains haste. Sacrifice it at the beginning of the next end step."
: You may put an artifact card from your hand onto the battlefield. That artifact gains haste. Sacrifice it at the beginning of the next end step."
Thran Temporal Gateway70%
$0.53↓#9632↓0.608.4 years↓
", : You may put a historic permanent card from your hand onto the battlefield."
, : You may put a historic permanent card from your hand onto the battlefield."
Dakkon, Shadow Slayer70%
$0.61↓#11085↓0.25↓5.3 years↓
"−6: You may put an artifact card from your hand or graveyard onto the battlefield."
Glint Hawk70%
$0.66↓#21637↓0.15↓15.9 years↓
"When this creature enters, sacrifice it unless you return an artifact you control to its owner's hand."