Obsidian Acolyte 

Creature — Human Cleric
$0.38 #27919 0.05 25.9 years
Protection from black
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Cards similar to Obsidian Acolyte 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.
Willow Priestess87%
$7.46↑#241400.60↑30.9 years↑
"
: Target green creature gains protection from black until end of turn."
Crimson Acolyte86%
$0.39↑#276570.29↑25.9 years
"
: Target creature gains protection from red until end of turn."
+1 more matching line
Black Ward86%
$0.25↓#232260.0033.1 years↑
"Enchanted creature has protection from black. This effect doesn't remove this Aura."
Righteous War82%
$2.81↑#225890.1129.6 years↑
"Black creatures you control have protection from white."
+1 more matching line
Pale Wayfarer80%
$0.12↓#306880.0618.3 years↓
"

,
: Target creature gains protection from the color of its controller's choice until end of turn."
Radiant Essence80%
$0.21↓#319730.28↑29.9 years↑
"This creature gets +1/+2 as long as an opponent controls a black permanent."
Mother of Runes80%
$7.88↑#507↑0.66↑27.6 years↑
"
: Target creature you control gains protection from the color of your choice until end of turn."
Sword of Sinew and Steel80%
$3.30↑#4192↑0.86↑7.2 years↓
"Equipped creature gets +2/+2 and has protection from black and from red."
Raven's Run Dragoon79%
$0.11↓#314640.25↑18.3 years↓
"This creature can't be blocked by black creatures."