Azorius Herald 
Creature — Spirit
$0.06 #25067 0.00 20.5 years
This creature can't be blocked.
When this creature enters, you gain 4 life.
When this creature enters, sacrifice it unless 
was spent to cast it.
was spent to cast it.Click a line or tag to filter
Cards similar to Azorius Herald 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.
Mist-Cloaked Herald92%
$0.30↑#2808↑0.17↑8.8 years↓
"This creature can't be blocked."
Triton Shorestalker92%
$0.36↑#2035↑0.19↑12.5 years↓
"This creature can't be blocked."
Jhessian Infiltrator92%
$0.21↑#206570.31↑18.0 years↓
"This creature can't be blocked."
Slither Blade92%
$0.31↑#1733↑0.25↑9.5 years↓
"This creature can't be blocked."
Phantom Warrior92%
$0.06#19231↑0.23↑29.5 years↑
"This creature can't be blocked."
Latch Seeker92%
$0.10↑#223470.19↑14.5 years↓
"This creature can't be blocked."
Covert Operative92%
$0.19↑#298220.17↑23.7 years↑
"This creature can't be blocked."
Metathran Soldier92%
$0.26↑#227170.0727.4 years↑
"This creature can't be blocked."
Storm Fleet Sprinter92%
$0.19↑#11142↑0.26↑8.8 years↓
"This creature can't be blocked."
Plasma Elemental92%
$0.20↑#30214↓0.0022.4 years↑
"This creature can't be blocked."
Azorius Knight-Arbiter92%
$0.11↑#219920.067.7 years↓
"This creature can't be blocked."
Tidal Kraken92%
$0.72↑#19336↑0.0027.0 years↑
"This creature can't be blocked."
Phantom Ninja92%
$0.28↑#11215↑0.12↑7.4 years↓
"This creature can't be blocked."
Talas Warrior92%
$5.52↑#260610.12↑28.3 years↑
"This creature can't be blocked."
Ghost, Spectral Saboteur92%
$0.19↑#207200.27↑0.3 years↓
"this card can't be blocked."
Wraith, Vicious Vigilante92%
$0.19↑#11582↑0.13↑1.1 years↓
"this card can't be blocked."
Patagia Viper88%
$0.08↑#238760.12↑20.5 years
"When this creature enters, sacrifice it unless was spent to cast it."
was spent to cast it."
Invisible Stalker88%
$0.77↑#2696↑0.39↑15.1 years↓
"This creature can't be blocked."
Mystic of the Hidden Way86%
$0.05↓#271550.0012.1 years↓
"This creature can't be blocked."
Squealing Devil86%
$0.18↑#30525↓0.0020.5 years
"When this creature enters, sacrifice it unless 
was spent to cast it."
was spent to cast it."