Serum Tank 
Artifact
$0.16 #23102 0.24 22.9 years
Whenever this artifact or another artifact enters, put a charge counter on this artifact.
, 
, Remove a charge counter from this artifact: Draw a card.Click a line or tag to filter
Cards similar to Serum Tank 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.
Trigon of Thought98%
$0.09↓#29345↓0.2715.9 years↓
"
, , Remove a charge counter from this artifact: Draw a card."
, , Remove a charge counter from this artifact: Draw a card."+1 more matching line
Angelheart Vial91%
$0.40↑#17585↑0.2216.4 years↓
", , Remove four charge counters from this artifact: You gain 2 life and draw a card."
, , Remove four charge counters from this artifact: You gain 2 life and draw a card."+1 more matching line
Insight Engine90%
$1.18↑#2502↑0.231.1 years↓
", : Put a charge counter on this artifact, then draw a card for each charge counter on it."
, : Put a charge counter on this artifact, then draw a card for each charge counter on it."
Arcane Spyglass90%
$0.13↓#203700.2222.6 years
"Remove three charge counters from this artifact: Draw a card."
Firemind's Research85%
$0.35↑#13379↑0.297.9 years↓
"
, Remove two charge counters from this enchantment: Draw a card."
, Remove two charge counters from this enchantment: Draw a card."
Trigon of Rage83%
$0.06↓#30784↓0.00↓15.9 years↓
"
, : Put a charge counter on this artifact."
, : Put a charge counter on this artifact."+1 more matching line
Scepter of Insight83%
$0.17↑#29937↓0.00↓17.6 years↓
", : Draw a card."
, : Draw a card."
Fateful Discovery82%
$5.99↑#13444↑0.00↓0.1 years↓
"Whenever an artifact you control enters, draw a card."
Trigon of Mending82%
$0.05↓#30028↓0.00↓15.9 years↓
"
, : Put a charge counter on this artifact."
, : Put a charge counter on this artifact."+1 more matching line
Urza's Blueprints82%
$0.16#233130.12↓27.6 years↑
": Draw a card."
: Draw a card."
Arcane Encyclopedia81%
$0.17↑#11063↑0.00↓8.1 years↓
", : Draw a card."
, : Draw a card."
Dragonspark Reactor80%
$0.32↑#9054↑0.00↓4.5 years↓
"Whenever this artifact or another artifact you control enters, put a charge counter on this artifact."
Tome of Legends80%
$0.30↑#2279↑0.196.9 years↓
", , Remove a page counter from this artifact: Draw a card."
, , Remove a page counter from this artifact: Draw a card."+1 more matching line
Karstoderm80%
$0.05↓#31823↓0.35↑22.6 years
"Whenever an artifact enters, remove a +1/+1 counter from this creature."
Machinesmith Automaton80%
$0.17↑#17896↑0.00↓0.2 years↓
"Whenever another artifact you control enters, put a +1/+1 counter on this creature."
Necrogen Censer80%
$0.07↓#29945↓0.1915.9 years↓
"This artifact enters with two charge counters on it."
Titan Forge79%
$0.24↑#8254↑0.3215.6 years↓
", : Put a charge counter on this artifact."
, : Put a charge counter on this artifact."
Norn's Wellspring78%
$0.28↑#7142↑0.47↑3.6 years↓
", , Remove two oil counters from this artifact: Draw a card."
, , Remove two oil counters from this artifact: Draw a card."
Donatello, Way with Machines78%
$0.21↑#13634↑0.00↓0.5 years↓
"Whenever an artifact you control enters, put a +1/+1 counter on this card."
Staff of the Storyteller78%
$0.43↑#3129↑0.173.6 years↓
", , Remove a story counter from this artifact: Draw a card."
, , Remove a story counter from this artifact: Draw a card."