Azorius Herald 
Creature — Spirit
$0.06 #24972 0.22 20.3 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.
Azorius Knight-Arbiter92%
$0.09↑#218220.40↑7.6 years↓
"This creature can't be blocked."
Latch Seeker92%
$0.09↑#220970.08↓14.4 years↓
"This creature can't be blocked."
Plasma Elemental92%
$0.20↑#298450.06↓22.3 years↑
"This creature can't be blocked."
Covert Operative92%
$0.23↑#295520.2823.6 years↑
"This creature can't be blocked."
Phantom Warrior92%
$0.06#18942↑0.07↓29.3 years↑
"This creature can't be blocked."
Tidal Kraken92%
$0.73↑#18941↑0.12↓26.9 years↑
"This creature can't be blocked."
Phantom Ninja92%
$0.25↑#10872↑0.00↓7.2 years↓
"This creature can't be blocked."
Storm Fleet Sprinter92%
$0.23↑#10840↑0.158.6 years↓
"This creature can't be blocked."
Mist-Cloaked Herald92%
$0.24↑#2826↑0.228.6 years↓
"This creature can't be blocked."
Metathran Soldier92%
$0.29↑#224420.00↓27.2 years↑
"This creature can't be blocked."
Talas Warrior92%
$5.56↑#256770.88↑28.2 years↑
"This creature can't be blocked."
Jhessian Infiltrator92%
$0.21↑#201760.38↑17.9 years↓
"This creature can't be blocked."
Slither Blade92%
$0.36↑#1728↑0.319.4 years↓
"This creature can't be blocked."
Invisible Stalker92%
$0.62↑#2676↑0.32↑14.9 years↓
"This creature can't be blocked."
Triton Shorestalker92%
$0.32↑#2014↑0.1612.3 years↓
"This creature can't be blocked."
Ghost, Spectral Saboteur92%
$0.22↑#216210.00↓0.2 years↓
"this card can't be blocked."
Wraith, Vicious Vigilante92%
$0.25↑#12282↑0.50↑1.0 years↓
"this card can't be blocked."
Mystic of the Hidden Way89%
$0.05↓#268350.12↓11.9 years↓
"This creature can't be blocked."
Patagia Viper88%
$0.06#234950.44↑20.3 years
"When this creature enters, sacrifice it unless was spent to cast it."
was spent to cast it."
Squealing Devil86%
$0.16↑#30211↓0.57↑20.3 years
"When this creature enters, sacrifice it unless 
was spent to cast it."
was spent to cast it."