Imperious Mindbreaker 
Creature — Human Wizard
$0.33 #14457 0.62 4.8 years
Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)
As long as Imperious Mindbreaker is paired with another creature, each of those creatures has "Whenever this creature attacks, each opponent mills cards equal to its toughness."
Click a line or tag to filter
Cards similar to Imperious Mindbreaker 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.
Doom Weaver81%
$2.42↑#8354↑0.564.8 years
"Soulbond"
Druid's Familiar80%
$0.19↓#11337↑0.20↓14.3 years↑
"Soulbond"
Trusted Forcemage80%
$0.07↓#30449↓0.27↓14.3 years↑
"Soulbond"
+1 more matching line
Mirage Phalanx80%
$1.56↑#7002↑0.16↓4.8 years
"Soulbond"
Thundering Mightmare78%
$0.39↑#10837↑0.33↓4.8 years
"Soulbond"
+1 more matching line
Nemesis of Reason78%
$3.24↑#4532↑0.51↓17.3 years↑
"Whenever this creature attacks, defending player mills ten cards."
Wolfir Silverheart76%
$0.44↑#138680.35↓14.3 years↑
"Soulbond"
Stonewright72%
$0.06↓#27688↓0.00↓14.3 years↑
"Soulbond"
Lightning Mauler72%
$0.06↓#19464↓0.00↓14.3 years↑
"Soulbond"
+1 more matching line
Wingcrafter72%
$0.17↓#7436↑0.39↓14.3 years↑
"Soulbond"
Pathbreaker Wurm72%
$0.06↓#21907↓0.20↓14.3 years↑
"Soulbond"
Hanweir Lancer71%
$0.03↓#26509↓0.33↓14.3 years↑
"Soulbond"
Galion, Elvenking's Butler70%
$0.15↓#22926↓0.00↓0.1 years↓
"Whenever this card attacks, choose up to one other target creature you control. Its base power and toughness become equal to this card's power and toughness until end of turn."
Spectral Gateguards70%
$0.10↓#28342↓0.00↓14.3 years↑
"Soulbond"
Galvanic Alchemist70%
$0.11↓#21838↓0.20↓14.3 years↑
"Soulbond"
Nightshade Peddler70%
$0.09↓#166490.00↓14.3 years↑
"Soulbond"
Silverblade Paladin70%
$0.59↑#9863↑0.75↑14.4 years↑
"Soulbond"
Nearheath Pilgrim70%
$0.06↓#23172↓0.27↓14.3 years↑
"Soulbond"