Mechan Shieldmate {1}{U}
Artifact Creature — Robot Soldier
Defender
As long as an artifact entered the battlefield under your control this turn, this creature can attack as though it didn't have defender.
click a line to search just that ability, click more to combine them
Cards that do something similar 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.
Shipwreck Sentry 100%
$0.08#24022
"As long as an artifact entered the battlefield under your control this turn, this creature can attack as though it didn't have defender."
+1 more matching line
Orcish Conscripts 83%
#30294
"This creature can't attack unless at least two other creatures attack."
Bloodcrazed Goblin 83%
$0.18#25197
"This creature can't attack unless an opponent has been dealt damage this turn."
Goblin Cohort 83%
$0.24#24308
"This creature can't attack unless you've cast a creature spell this turn."
Mogg Conscripts 83%
#27105
"This creature can't attack unless you've cast a creature spell this turn."
Harbor Serpent 83%
$0.14#20206
"This creature can't attack unless there are five or more Islands on the battlefield."
Mogg Toady 82%
$0.11#30572
"This creature can't attack unless you control more creatures than defending player."
Goblin Goon 82%
$0.35#20282
"This creature can't attack unless you control more creatures than defending player."
Bloodthirster 81%
$32.32#2531
"This creature can't attack a player it has already attacked this turn."
Silburlind Snapper 81%
$0.04#26997
"This creature can't attack unless you've cast a noncreature spell this turn."
Champions of Minas Tirith 80%
$0.32#5273
"At the beginning of combat on each opponent's turn, if you're the monarch, that opponent may pay {X}, where X is the number of cards in their hand. If they don't, they can't attack you this combat."
Faithbound Judge // Sinner's Judgment 80%
$0.78#11161
"As long as this creature has three or more judgment counters on it, it can attack as though it didn't have defender."
Warmonger's Chariot 80%
$0.30#19177
"As long as equipped creature has defender, it can attack as though it didn't have defender."