Arc Reactor 
Artifact
$0.87 #5606 0.28 0.3 years
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for 
.)
.)This artifact enters tapped.
: Add 
.Click a line or tag to filter
Cards similar to Arc Reactor 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.
Enraged Giant96%
$0.05↓#29175↓0.309.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Foundry Assembler96%
$0.13↓#23696↓0.05↓9.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Wind-Kin Raiders96%
$0.04↓#31304↓0.00↓9.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Sweatworks Brawler96%
$0.03↓#29857↓0.12↓9.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Barricade Breaker96%
$0.11↓#20313↓0.11↓9.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Bastion Inventor96%
$0.03↓#28817↓0.06↓9.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Universal Surveillance95%
$0.20↓#53520.06↓4.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Reverse Engineer95%
$0.19↓#8036↓0.12↓9.8 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Maverick Thopterist95%
$0.11↓#19041↓0.249.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Battle at the Bridge94%
$0.28↓#11812↓0.06↓9.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Bottle-Cap Blast94%
$2.13↑#4051↑0.362.6 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Sly Requisitioner94%
$0.10↓#18509↓0.15↓9.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Freejam Regent93%
$0.16↓#26012↓0.00↓9.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Worn Powerstone92%
$0.26↓#573↑0.00↓28.0 years↑
"This artifact enters tapped."
+1 more matching line
Firemind Vessel92%
$0.22↓#4256↑0.00↓7.5 years↑
"This artifact enters tapped."
Fen Hauler91%
$0.05↓#29240↓0.06↓9.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Synth Infiltrator90%
$0.29↓#9025↓0.06↓2.6 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Organic Extinction90%
$0.32↓#1314↑0.48↑4.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Metallic Rebuke90%
$0.25↓#10840↓0.44↑9.7 years↑
"Improvise Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for ."
."
Thran Dynamo88%
$2.06↑#195↑0.06↓27.4 years↑
": Add ."
: Add ."